Re: [OpenLayers-Users] How to print map area with openlayers
rakesh.modi1585 wrote: Hi, I want to print map area (WMS Layer) with overlay vector layers. Is it possible in openlayers, if it then how it is done? Thanks Rakesh Check out the link that Lisa said in her e-mail. We resorted to a server side stitching because we couldn't rely on the differences between browsers. Some browsers wouldn't be able to print all the layers and we didn't have much success with printing vector. By going server side, we can control all that (including vectors) and provide options for output (JPG, PDF, etc..) Shawn -- View this message in context: http://n2.nabble.com/How-to-print-map-area-with-openlayers-tp4901023p4907889.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] New OpenLayers Site
Hi everyone, Here's an example of our soon-to-be-released IMS which uses OpenLayers and TileCache: http://tomas.fallsviewer.ca http://tomas.fallsviewer.ca We are using Manifold in the back end to generate most of the tiles (and cached by TileCache) along with handle the Spatial/Information requests. There are still a few issues we need to work out (ortho layer transparency, and some minor printing issues) but it should be released within the next couple of months if all goes well. It is already used throughout our main site for what we call the 'mini-maps': http://www.niagarafalls.ca/business/business_directory/single.asp?listID=49229 http://www.niagarafalls.ca/business/business_directory/single.asp?listID=49229 If you decide to give it a go, please let me know if you run into any odd things or have any questions. We are still ironing out some bugs. Thanks, Shawn -- View this message in context: http://n2.nabble.com/New-OpenLayers-Site-tp4257614p4257614.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] ModifyFeatureControl - vertices styling
I just went through this myself.
In my case, I was already taking advantage of using vector styling context
(similar to this example:
http://www.openlayers.org/dev/examples/styles-context.html
http://www.openlayers.org/dev/examples/styles-context.html )
I found that the points that are used for the vertices have a property
called _sketch. This allowed me to pick out those particular points and
style them accordingly.
This solution may be overkill for what you are looking for though
/* styling for the vector layers */
/* different styles to apply depending on the type of vector */
vectorTypeLookup[normal] = { fillColor: '#ee9900', fillOpacity:
0.4, strokeWidth: 1.0, strokeColor: '#ee9900', pointRadius: 6 };
vectorTypeLookup[polygon] = { fillColor: '#ee9900', fillOpacity:
0.4, strokeWidth: 1.0, strokeColor: '#ee9900', pointRadius: 6 };
vectorTypeLookup[point] = { fillColor: '#ee9900', fillOpacity:
0.4, strokeWidth: 2.0, strokeColor: '#ee9900', pointRadius: 8 };
vectorTypeLookup[line] = { fillColor: '#ee9900', fillOpacity: 0.4,
strokeWidth: 3.0, strokeColor: '#ee9900', pointRadius: 6 };
vectorTypeLookup[label] = { fillColor: '#ee9900', fillOpacity:
0.4, strokeWidth: 1.0, strokeColor: '#ee9900', pointRadius: 3,
labelAlign: tr, fontSize: 12px, fontColor: #005596,
fontWeight: bold, labelSelect: true
};
vectorTypeLookup[sketch] = { fillColor: '#005596', fillOpacity:
0.4, strokeWidth: 3.0, strokeColor: '#005596', pointRadius: 6 };
/* create a template that will use the functions to get the
appropriate colour */
var vectorTemplate = { fillColor: ${getFillColour}, fillOpacity:
${getFillOpacity}, strokeWidth: ${getStrokeWidth}, strokeColor:
${getStrokeColour}, pointRadius: ${getPointRadius},
labelAlign: ${getLabelAlign}, fontSize: ${getFontSize},
fontColor: ${getFontColour}, fontWeight: ${getFontWeight}, labelSelect:
${getLabelSelect}, label: ${getLabel}
};
/*
the style will use the context when determining the appropriate
style - see the vectorStyle declaration
- ex. drawing a polygon on the drawLayer.
1) drawLayer is assigned the vectorStyleMap to detrmine the style
2) The vectorStyleMap uses the vectorStyle rule to know what style
properties are available
3) The vectorStyle refers to vectorTemplate to configure the
different properties (fillColor, strokeWidth). The vectorContext is used to
evaluate the ${...} items
4) Each function in vectorContext returns the appropriate property
value
*/
var vectorContext = {
getVectorType: function(feature) {
try {
if (typeof (feature._sketch) !== undefined) {
return vectorTypeLookup[sketch]; /* used when
modifying items */
} else if
(feature.geometry.CLASS_NAME.search(/polygon$/i) = 0) {
return vectorTypeLookup[polygon];
} else if (feature.geometry.CLASS_NAME.search(/point$/i)
= 0 typeof (feature.attributes.label) !== undefined) { /* labels are
point vectors */
return vectorTypeLookup[label];
} else if (feature.geometry.CLASS_NAME.search(/point$/i)
= 0) {
return vectorTypeLookup[point];
} else if
(feature.geometry.CLASS_NAME.search(/linestring$/i) = 0) {
return vectorTypeLookup[line];
} else {
/*who knows */
return vectorTypeLookup[normal];
}
} catch (e) { return vectorTypeLookup[normal]; }
},
getFillColour: function(feature) { return
vectorContext.getVectorType(feature).fillColor; },
getFillOpacity: function(feature) { return
vectorContext.getVectorType(feature).fillOpacity; },
getStrokeWidth: function(feature) { return
vectorContext.getVectorType(feature).strokeWidth; },
getStrokeColour: function(feature) { return
vectorContext.getVectorType(feature).strokeColor; },
getPointRadius: function(feature) { return
vectorContext.getVectorType(feature).pointRadius; },
getLabel: function(feature) {
if (typeof (feature.attributes.label) != undefined) {
/* return the label */
return feature.attributes.label;
} else {
return ; /* nothing */
}
},
getLabelAlign: function(feature) {
try {
return vectorContext.getVectorType(feature).labelAlign;
} catch (e) { return ; }
},
getFontSize: function(feature) {
try {
return vectorContext.getVectorType(feature).fontSize;
} catch (e) { return ; }
[OpenLayers-Users] Draw Features by entering size (radius / length)
How can I use the DrawFeatures tool(s) to draw features by specifying a size. For example, create a circle with a radius of 100 metres? Draw a line 50 metres long? Even if the user has to draw a basic object (circle for example) and then once it is created, specify the radius. Thanks! Shawn -- View this message in context: http://n2.nabble.com/Draw-Features-by-entering-size-radius-length-tp3879669p3879669.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] OL on Blackerry?
Has anyone had any experience working on developing an OL site that works with Blackberry devices? Shawn -- View this message in context: http://n2.nabble.com/OL-on-Blackerry--tp3357079p3357079.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Error displaying map in IE8 - VML.js
In case anyone else runs into this, I found out that after the map is
created, it sometimes doesn't set a height or width value in the map.size
property. Here's my fix which seems to work quite nicely:
map = new OpenLayers.Map('map', options);
if (isNaN(map.size.w) || isNaN(map.size.h)) {
map.updateSize();
}
Shawn
soatley wrote:
I have a feeling I am running into the same issue here. I am using
Revision 9492 and the problem I encounter is the Invalid Argument error
when adding vector layers to the map.
I have tried it on IE 7 (Win XP 32 bit) and IE 8 (Vista 64, in
compatability mode). IE 8 on Vista not in compat. mode works fine.
It seems to be very similar to the issue with Ticket 1910 from what I can
tell Setting up an IE breakpoint on line 600 of OpenLayers.js it
breaks where the variables w and h are assigned because this.size.w is
NaN. If you were to look at the VML.js file, it is in the area of line
154.
Does anyone have any new information or a way I can work around this?
Shawn
Christopher Schmidt-2 wrote:
On Thu, Jun 18, 2009 at 10:23:15AM -0700, palewire wrote:
I've encountered some IE8 errors too. Here's the paste from what the
browser
gives you. Is there anything I can do to help out?
What SVN version is this with? This should only have been fixed in the
last few commits.
-- Chris
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1;
Trident/4.0)
Timestamp: Thu, 18 Jun 2009 17:21:04 UTC
Message: Invalid argument.
Line: 793
Char: 110
Code: 0
URI: http:// ... /openlayers/OpenLayers.js
Asle Benoni wrote:
Sorry Christopher and others. That was a bad one from me. I did't like
my attitude there.
Of course I will test it since I had the problem just now. Glad you
pointed that out since I am always so glad and amazed at people here
just helping out ;-)
Hope I can contribute also.
/asle
Den 12. juni. 2009 kl. 16.01 skrev Christopher Schmidt:
On Fri, Jun 12, 2009 at 03:52:54PM +0200, Asle Benoni wrote:
Thanks Kenneth, the compatibility hack works fine. I would rather
not hack
VML.js but I see this hack is newer than the one I tried. As long
as the
quickfix works I am satisfied. But would like to know if some have
success
with it and if it is included in future OL release.
It can't be included in a future OL release until people test it. If
you're unwilling to test it, the chances it will be included
decrease.
Please help test it if you care about it.
-- Chris
/asle
2009/6/12 Andreas Hocevar ahoce...@opengeo.org
Hi,
On Fri, Jun 12, 2009 at 8:53 AM, Kenneth Skovhede, GEOGRAF
A/Sk...@geograf.dk wrote:
Note sure what the actual problem is, but there are notes that
the patch
does not solve all issues.
There is a nother fix mentioned, namely the one in comment #20:
http://trac.openlayers.org/ticket/1910#comment:20
This effectively places IE8 in IE7 compatibility mode, and it
works.
Although it's not the correct long term solution, you can use it
until
the issue is fixed more permanently.
The latest patch [1] should fix all vector layer issues in IE8. It
would be nice to get some feedback if this is really the case.
Regards,
Andreas.
[1]
http://trac.openlayers.org/attachment/ticket/1910/openlayers-1910.patch
--
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OpenGeo - http://opengeo.org/
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Re: [OpenLayers-Users] Error displaying map in IE8 - VML.js
Should have checked my CSS before posting that mesage.
Here is what I already have defined in for my map object:
#map
{
position: absolute;
width: 100%;
height: 100%;
top: 0px;
left: 0px;
}
Andreas Hocevar-2 wrote:
soatley wrote:
In case anyone else runs into this, I found out that after the map is
created, it sometimes doesn't set a height or width value in the map.size
property. Here's my fix which seems to work quite nicely:
map = new OpenLayers.Map('map', options);
if (isNaN(map.size.w) || isNaN(map.size.h)) {
map.updateSize();
}
You can also make sure that the container where you render the map in
(in your snippet a div or whatever element with id 'map') has a width
and height style before you create the map object.
Regards,
Andreas.
Shawn
soatley wrote:
I have a feeling I am running into the same issue here. I am using
Revision 9492 and the problem I encounter is the Invalid Argument error
when adding vector layers to the map.
I have tried it on IE 7 (Win XP 32 bit) and IE 8 (Vista 64, in
compatability mode). IE 8 on Vista not in compat. mode works fine.
It seems to be very similar to the issue with Ticket 1910 from what I
can
tell Setting up an IE breakpoint on line 600 of OpenLayers.js it
breaks where the variables w and h are assigned because this.size.w is
NaN. If you were to look at the VML.js file, it is in the area of line
154.
Does anyone have any new information or a way I can work around this?
Shawn
Christopher Schmidt-2 wrote:
On Thu, Jun 18, 2009 at 10:23:15AM -0700, palewire wrote:
I've encountered some IE8 errors too. Here's the paste from what the
browser
gives you. Is there anything I can do to help out?
What SVN version is this with? This should only have been fixed in the
last few commits.
-- Chris
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1;
Trident/4.0)
Timestamp: Thu, 18 Jun 2009 17:21:04 UTC
Message: Invalid argument.
Line: 793
Char: 110
Code: 0
URI: http:// ... /openlayers/OpenLayers.js
Asle Benoni wrote:
Sorry Christopher and others. That was a bad one from me. I did't
like
my attitude there.
Of course I will test it since I had the problem just now. Glad you
pointed that out since I am always so glad and amazed at people here
just helping out ;-)
Hope I can contribute also.
/asle
Den 12. juni. 2009 kl. 16.01 skrev Christopher Schmidt:
On Fri, Jun 12, 2009 at 03:52:54PM +0200, Asle Benoni wrote:
Thanks Kenneth, the compatibility hack works fine. I would rather
not hack
VML.js but I see this hack is newer than the one I tried. As long
as the
quickfix works I am satisfied. But would like to know if some have
success
with it and if it is included in future OL release.
It can't be included in a future OL release until people test it. If
you're unwilling to test it, the chances it will be included
decrease.
Please help test it if you care about it.
-- Chris
/asle
2009/6/12 Andreas Hocevar ahoce...@opengeo.org
Hi,
On Fri, Jun 12, 2009 at 8:53 AM, Kenneth Skovhede, GEOGRAF
A/Sk...@geograf.dk wrote:
Note sure what the actual problem is, but there are notes that
the patch
does not solve all issues.
There is a nother fix mentioned, namely the one in comment #20:
http://trac.openlayers.org/ticket/1910#comment:20
This effectively places IE8 in IE7 compatibility mode, and it
works.
Although it's not the correct long term solution, you can use it
until
the issue is fixed more permanently.
The latest patch [1] should fix all vector layer issues in IE8. It
would be nice to get some feedback if this is really the case.
Regards,
Andreas.
[1]
http://trac.openlayers.org/attachment/ticket/1910/openlayers-1910.patch
--
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OpenGeo - http://opengeo.org/
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Users
Re: [OpenLayers-Users] transitionEffect bug?
I tried some very basic tests with and without the resize option and it does seem to create a fair number of additional requests. Here are my results... With Resize: Initial Load: 585 requests +1 Zoom level: 999 requests (+414 for the zoom) -1 Zoom level: 1096requests (+97 for the zoom) Without Resize: Initial Load: 419 requests +1 Zoom level: 683 requests (+192 for the zoom) -1 Zoom level: 731 requests (+48 for the zoom) The site I am testing with has about 5 WMS layers, a couple of vector layers (shouldn't matter) and about 15 tool buttons on the screen (plus the zoom bar, pan bar). On the initial load, there are 3 layers turned on. (If this info helps.) For now, I will keep the resize effect turned off because it does seem to make a decent speed difference. Shawn Paul Spencer wrote: When using the resize option, two images are created for each tile. The 'current' image is resized when zooming and the new image is loaded in front of it, effectively providing greater (or lesser) detail. I don't think it should be making any additional requests for a zoom. Could be a bug, or possibly a side effect of using (firebug?) to monitor the requests and not having caching turned on in your browser? Paul On 29-Jul-09, at 6:27 AM, Andrea Di Nora wrote: Hi, I have a question on transitionEffect with option 'resize', when i use this effect on a TMS Layer, every time i make a zoom, two request for each single tile have been launched. It is correct or a bug? You can test with tms.html example adding transitionEffect: 'resize', on TMS Layer Options. Thank you for response. Andrea ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- View this message in context: http://n2.nabble.com/transitionEffect-bug--tp3348923p3351576.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Error displaying map in IE8 - VML.js
I have a feeling I am running into the same issue here. I am using Revision 9492 and the problem I encounter is the Invalid Argument error when adding vector layers to the map. I have tried it on IE 7 (Win XP 32 bit) and IE 8 (Vista 64, in compatability mode). IE 8 on Vista not in compat. mode works fine. It seems to be very similar to the issue with Ticket 1910 from what I can tell Setting up an IE breakpoint on line 600 of OpenLayers.js it breaks where the variables w and h are assigned because this.size.w is NaN. If you were to look at the VML.js file, it is in the area of line 154. Does anyone have any new information or a way I can work around this? Shawn Christopher Schmidt-2 wrote: On Thu, Jun 18, 2009 at 10:23:15AM -0700, palewire wrote: I've encountered some IE8 errors too. Here's the paste from what the browser gives you. Is there anything I can do to help out? What SVN version is this with? This should only have been fixed in the last few commits. -- Chris Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0) Timestamp: Thu, 18 Jun 2009 17:21:04 UTC Message: Invalid argument. Line: 793 Char: 110 Code: 0 URI: http:// ... /openlayers/OpenLayers.js Asle Benoni wrote: Sorry Christopher and others. That was a bad one from me. I did't like my attitude there. Of course I will test it since I had the problem just now. Glad you pointed that out since I am always so glad and amazed at people here just helping out ;-) Hope I can contribute also. /asle Den 12. juni. 2009 kl. 16.01 skrev Christopher Schmidt: On Fri, Jun 12, 2009 at 03:52:54PM +0200, Asle Benoni wrote: Thanks Kenneth, the compatibility hack works fine. I would rather not hack VML.js but I see this hack is newer than the one I tried. As long as the quickfix works I am satisfied. But would like to know if some have success with it and if it is included in future OL release. It can't be included in a future OL release until people test it. If you're unwilling to test it, the chances it will be included decrease. Please help test it if you care about it. -- Chris /asle 2009/6/12 Andreas Hocevar ahoce...@opengeo.org Hi, On Fri, Jun 12, 2009 at 8:53 AM, Kenneth Skovhede, GEOGRAF A/Sk...@geograf.dk wrote: Note sure what the actual problem is, but there are notes that the patch does not solve all issues. There is a nother fix mentioned, namely the one in comment #20: http://trac.openlayers.org/ticket/1910#comment:20 This effectively places IE8 in IE7 compatibility mode, and it works. Although it's not the correct long term solution, you can use it until the issue is fixed more permanently. The latest patch [1] should fix all vector layer issues in IE8. It would be nice to get some feedback if this is really the case. Regards, Andreas. [1] http://trac.openlayers.org/attachment/ticket/1910/openlayers-1910.patch -- Andreas Hocevar OpenGeo - http://opengeo.org/ Expert service straight from the developers. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- Christopher Schmidt MetaCarta ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- View this message in context: http://n2.nabble.com/Error-displaying-map-in-IE8---VML.js-tp3061276p3114656.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- Christopher Schmidt MetaCarta ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- View this message in context: http://n2.nabble.com/Error-displaying-map-in-IE8---VML.js-tp3061276p3336661.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Call function before control activate
I can't seem to find a way to call a function before a control is activated.
What I am trying to do is record the currently active control before
activating the new control. That way, when the control is done executing,
the previous control can be re-activated.
This would be useful for tools that perform a function on click and then
they are done (for example, clear all selections on a layer).
I have tried checking what control is active when the new control.activate
is fired, but by that time, the old control seems to have been decativated
because it's active property is set to false. By extending a control (see
code below) it executes when the control is created, but not activated.
clearSelectionControl = new OpenLayers.Control({ title: Clear any
selections, displayClass: olControlClearSelection });
OpenLayers.Util.extend(clearSelectionControl, {
draw: function() {
this.box = new OpenLayers.Handler.Box(clearSelectionControl,
{ done: this.notice,
activate: this.makeActive
});
log(checking active control);
for (var c in map.controls) {
if (map.controls[c].active == true) {
log(map.controls[c].displayClass + : +
map.controls[c].active);
}
}
log(done checking);
},
notice: function(bounds) {
log(firing notice);
}
});
Can anyone think of a way to do this?
Shawn
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[OpenLayers-Users] Can't get OpenLayers to Co-operate with TileCache resolutions
Hopefully someone can see what I must be doing wrong
I have been trying to get TileCache (most recent from site) to work nicely
with OL 2.8 for a week and it just doesn't seem to be working perfectly.
Here is my map config:
options = {
projection: new OpenLayers.Projection(EPSG:26917),
/*maxExtent: new OpenLayers.Bounds(640541.774843334,
4755587.40501464, 667085.402317306, 4779623.23729788),*/
maxExtent: new OpenLayers.Bounds(640541.77, 4755587.40, 667085.40,
4779623.23),
units: m,
tileSize: new OpenLayers.Size(256, 256),
/*resolutions: [850, 425, 212.5, 106.25, 53.125, 26.5625, 13.28125,
6.640625, 3.3203125, 1.66015625, 0.830078125, 0.4150390625, 0.20751953125,
0.103759765625, 0.0518798828125],*/
resolutions: [850, 425, 212.5, 106.25, 53.12, 26.56, 13.28, 6.64,
3.32, 1.66, 0.83, 0.41, 0.20, 0.10, 0.05],
/*numZoomLevels: 15,*/
controls: [new OpenLayers.Control.LayerSwitcher(),
new OpenLayers.Control.MouseDefaults(),
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.OverviewMap(),
new OpenLayers.Control.KeyboardDefaults(),
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.MousePosition({ div:
$j(#position).get(0) }),
new OpenLayers.Control.LoadingPanel(),
new OpenLayers.Control.ScaleBar()
]
};
You can see I've tried different map resolutions and bounding boxes because
I read some threads that indicated we should not have a large number of
decimal places.
My tilecache.cfg:
[basewdrawing]
type=WMS
url=http://wmsServer
layers=wmsLayers
extension=png
mime_type=image/png
#resolutions=850,425,212.5,106.25,53.125,26.5625,13.28125,6.640625,3.3203125,1.66015625,0.830078125,0.4150390625,0.20751953125,0.103759765625,0.0518798828125
resolutions=850,425,212.5,106.25,53.12,26.56,13.28,6.64,3.32,1.66,0.83,0.41,0.20,0.10,0.05
bbox=640541.77, 4755587.40, 667085.40, 4779623.23
#bbox=640541.774843334, 4755587.40501464, 667085.402317306, 4779623.23729788
metaTile=true
metaSize=11,11
srs=EPSG:26917
extent_type=loose
I've tried with extent_type and without - that didn't seem to have any
difference.
When I seed my cache with tilecache_seed.py I don't get any error messages
and it appears to work properly. Files are created, they aren't blank, etc.
I have tried using Layer.TileCache and Layer.WMS. With the TileCache
layers, I get misplaced tiles and with the WMS layer I get a resolution
error:
An error occurred: can't find resolution index for 2.00. Available
resolutions are:
[850.0, 425.0, 212.5, 106.25, 53.117, 26.559,
13.279, 6.6397, 3.3198,
1.6599, 0.82996, 0.40998,
0.20001, 0.10001, 0.050003]
I don't understand why I get this error because both the TC and OL config's
have the resolutions specified.
Finally, my layer config:
var BaseMap = new OpenLayers.Layer.WMS(Base Map,
[http://wmsServer/tilecache.py,http://wmsServer/tilecache.py;],
{
layers: basewdrawing,
format: image/png,
transparent: false
},
{
visibility: true
}
);
If I have the layer go straight to the WMS Server, everything works fine.
But I love how fast TileCache can seed my layers so I really want to use it
to seed my layers.
I hope I've provided enough information for some assistance.
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Re: [OpenLayers-Users] Can't get OpenLayers to Co-operate with TileCache resolutions
With a little more fooling around, I have found that it has to do with the MetaTiling My WMS Server is Manifold 8.0 and it can only write out PNG images. I am using .NET to write out the binary stream to TileCache from Manifold. I don't think it is an Interlacing issue because TC would complain if I sent it an interlaced PNG. Also, if I turn MetaTile off and generate each tile individually, it works fine (without any .NET code changing). The problem with this is that I don't get any speed benefit when seeding my layers and it takes days to seed a layer. I've http://yfrog.com/5bexamplemqrp linked to a screen shot of what happens when I have metaTiling on. On the left half of the image, you can see that there is an issue with how the road center lines are rendered. Still looking for some assistance from anyone who may have come across any issues like this. soatley wrote: Hopefully someone can see what I must be doing wrong I have been trying to get TileCache (most recent from site) to work nicely with OL 2.8 for a week and it just doesn't seem to be working perfectly. [snip...] -- View this message in context: http://n2.nabble.com/Can%27t-get-OpenLayers-to-Co-operate-with-TileCache-resolutions-tp3198651p3199002.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Can't get OpenLayers to Co-operate with TileCache resolutions
Getting closer yet I figured out that it has to do with the metaSize parameter. I tried setting it to the default (5,5) and the problems were corrected. I am able to get it up to 8,8 without a problem. Once I hit 9,9 or above, I start getting oddities - the higher I go, the more I get. Wierd. One thing I am not noticing is that OpenLayers is requesting tiles that are way outside my bounds. For example, on my Zoom level 0, it is asking for: /tilecache/basewdrawing/00/000/000/028/000/000/024.png This is way out because my zoom level 0 is only 1 tile (256X256) and the entire map takes up about 1/10th of the tile. Has anyone else had this happen to them? The client doesn't get any error messages, but there are a ton of 404's happening in the background along with the increased traffic from the browser to the server attempting to get all these crazy tiles. Shawn soatley wrote: With a little more fooling around, I have found that it has to do with the MetaTiling My WMS Server is Manifold 8.0 and it can only write out PNG images. I am using .NET to write out the binary stream to TileCache from Manifold. I don't think it is an Interlacing issue because TC would complain if I sent it an interlaced PNG. [snip...] -- View this message in context: http://n2.nabble.com/Can%27t-get-OpenLayers-to-Co-operate-with-TileCache-resolutions-tp3198651p3199157.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Error in Tile Cache configh current x value too far from tile corner?
I am running into this issue now also. How many decimal places would be OK? Here are my resolutions: 850 425 212.5 106.25 53.125 26.5625 13.28125 6.640625 3.3203125 1.66015625 0.830078125 0.4150390625 0.20751953125 0.103759765625 0.0518798828125 As you can see, if I rounded my resolutions off totally, it would render a number of the zoom levels useless. I've tried 2 decimal places, but still get the same effect. Thanks, Shawn Christopher Schmidt-2 wrote: On Sun, Nov 25, 2007 at 05:55:29PM -0600, Lance Dyas wrote: The image urls.. are all returning like this... An error occurred: Current x value 15.995916 is too far from tile corner x 15.996094 Round all your values, in OL and TC, off (on maxExtent and maxResolution). Regards, -- Christopher Schmidt MetaCarta ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users -- View this message in context: http://n2.nabble.com/Error-in-Tile-Cache-configh-current-x-value-too-far-from-tile-corner--tp1826527p3184099.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Adjust sensitivity of keyboard control and mouse wheel
Hello, Is there anyway to adjust the sensitivity of the keyboard controls (panning) and the mouse wheel (zooming)? It would be nice if panning would pan a little more for each key press and the zoom wheel would be a little less sensitive. Shawn -- View this message in context: http://n2.nabble.com/Adjust-sensitivity-of-keyboard-control-and-mouse-wheel-tp3149822p3149822.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] Adjust sensitivity of keyboard control and mouse wheel
Wow!
That is perfect! This is exactly it.
Thank you!
Shawn
Andreas Hocevar-2 wrote:
Hi,
On Wed, Jun 24, 2009 at 6:27 PM, soatleysh...@niagarafalls.ca wrote:
Is there anyway to adjust the sensitivity of the keyboard controls
(panning)
and the mouse wheel (zooming)? It would be nice if panning would pan a
little more for each key press and the zoom wheel would be a little less
sensitive.
Assuming you want this application-wide, the tweaks below have to be
done before creating the map object:
// drag movement in pixels, default is 75
OpenLayers.Control.KeyboardDefaults.prototype.slideFactor = 200; //
default is 50
For the mousewheel, a bit more customisation is required: if you want
to spin the wheel more before zooming occurs, you need a counter for
the wheelUp and wheelDown handlers:
OpenLayers.Control.Navigation.prototype.counter = 0;
OpenLayers.Control.Navigation.prototype.wheelUp = function(evt) {
this.counter++;
if(this.counter 2) {
this.counter = 0;
this.wheelChange(evt, 1);
}
};
OpenLayers.Control.Navigation.prototype.wheelDown = function(evt) {
this.counter--;
if(this.counter -2) {
this.counter = 0;
this.wheelChange(evt, -1);
}
};
In the above setup, you need to spin the wheel three times as far as
with the default config for the zoom to happen. If you want to make it
even less sensitive, replace the 2 (and -2 respectively) with a higher
number.
Regards,
Andreas.
Shawn
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Re: [OpenLayers-Users] Map Aspect Ratio Seems Off (Makes layers wide)
Andreas, Thank you for that information! You've solved my problem and even fixed one of my todo items of getting the MousePosition into UTM! Thanks Shawn Andreas Hocevar-2 wrote: Hi, On Fri, Jun 19, 2009 at 10:38 PM, soatleysh...@niagarafalls.ca wrote: Your co-workers are right. Maps in geographic coordinates (EPSG:4326) look like that. The further you get away from the equator, the more the map will be shrunk in latitudinal direction. This is not a bug, but a matter of choosing the appropriate map projection. The GIS staff tell me that our data is projected in UTM 17N NAD83. The EPSG code for this projection is probably EPSG:26917. See http://spatialreference.org/ref/epsg/26917/ So the two things to change in your code is that you set the projection to EPSG:26917 instead of EPSG:4326, set units to m (meters), and provide the maxExtent in projected coordinates. Regards, Andreas. -- View this message in context: http://n2.nabble.com/Map-Aspect-Ratio-Seems-Off-%28Makes-layers-wide%29-tp3122010p3138291.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Map Aspect Ratio Seems Off (Makes layers wide)
I am having an issue with the aspect ratio of my map and my knowledge of
projections is not that good, but my GIS co-workers are telling me that is
probably the cause. The attached image(
http://n2.nabble.com/file/n3122010/example.jpg example.jpg ) shows what the
map should look like (our existing mapping software) and how OL is
displaying it.
Here is how I instantiate my map object:
OpenLayers.Layer.cWMS = OpenLayers.Class(OpenLayers.Layer.WMS, {
isClickable: false
});
options = {
projection: new OpenLayers.Projection(EPSG:4326),
maxExtent: new OpenLayers.Bounds(-79.287519, 42.920835, -78.956522,
43.156),
tileSize: new OpenLayers.Size(256, 256),
maxResolution: 2 / 256,
numZoomLevels: 15,
controls: [new OpenLayers.Control.LayerSwitcher(),
new OpenLayers.Control.MouseDefaults(),
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.OverviewMap(),
new OpenLayers.Control.KeyboardDefaults(),
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.MousePosition({ div:
$j(#position).get(0) }),
new OpenLayers.Control.LoadingPanel(),
new OpenLayers.Control.ScaleBar()
]
};
map = new OpenLayers.Map('map', options);
var BaseMap = new OpenLayers.Layer.cWMS(Base Map,
[http://wmsServer/wms.png,http://wmsServer2/wms.png;],
{
layers: BaseW Drawing,Background Colour,RoadCL
Drawing,Surrounding
Lands Labels,
format: image/png,
transparent: false
},
{
visibility: true,
isClickable: false
}
);
map.addLayers([BaseMap]);
You can see that I've extended the WMS layer just so that I can add the
'isClickable' property. The map was skewed before I created that, so that
is not the issue.
The GIS staff tell me that our data is projected in UTM 17N NAD83.
I hope I have provided enough information for someone to help me.
Thanks!
Shawn
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[OpenLayers-Users] MapServer Layer for ECW creating blank tiles
Hopefully someone with some Mapserver knowledge can help me out as I am
having problems getting Mapserver to work with OL.
First a little background. I have OL 2.8 rc6 up and running with multiple
layers being pulled via my WMS server (Manifold). I have been having
problems getting Manifold to generate the tiles for ECW files so I am
turning to MapServer to hopefully solve the problem. I am not a GIS person,
I am a web programmer, so please go easy.
Here is the output of gdalinfo on my ECW File:
Driver: ECW/ERMapper Compressed Wavelets
Files: ortho.ecw
Size is 75010, 115010
Coordinate System is:
PROJCS[NUTM17,
GEOGCS[NAD83,
DATUM[North_American_Datum_1983,
SPHEROID[GRS 1980,6378137,298.257222101,
AUTHORITY[EPSG,7019]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY[EPSG,6269]],
PRIMEM[Greenwich,0,
AUTHORITY[EPSG,8901]],
UNIT[degree,0.0174532925199433,
AUTHORITY[EPSG,9108]],
AXIS[Lat,NORTH],
AXIS[Long,EAST],
AUTHORITY[EPSG,4269]],
PROJECTION[Transverse_Mercator],
PARAMETER[latitude_of_origin,0],
PARAMETER[central_meridian,-81],
PARAMETER[scale_factor,0.9996],
PARAMETER[false_easting,50],
PARAMETER[false_northing,0],
UNIT[Meter,1]]
Origin = (646999.000,478.9998600)
Pixel Size = (0.200,-0.200)
Corner Coordinates:
Upper Left ( 646999.000, 4780001.000) ( 79d11'30.77W, 43d 9'30.53N)
Lower Left ( 646999.000, 4756999.000) ( 79d11'52.64W, 42d57'5.23N)
Upper Right ( 662001.000, 4780001.000) ( 79d 0'26.85W, 43d 9'19.50N)
Lower Right ( 662001.000, 4756999.000) ( 79d 0'50.94W, 42d56'54.27N)
Center ( 654500.000, 4768500.000) ( 79d 6'10.32W, 43d 3'12.52N)
Band 1 Block=75010x1 Type=Byte, ColorInterp=Red
Overviews: arbitrary
Band 2 Block=75010x1 Type=Byte, ColorInterp=Green
Overviews: arbitrary
Band 3 Block=75010x1 Type=Byte, ColorInterp=Blue
Overviews: arbitrary
Viewing some documentation and using google, I created this map file:
MAP
PROJECTION init=epsg:4326
END
SIZE 256 256
STATUS ON
EXTENT 646999.000 4756999.000 662001.000 4780001.000
UNITS METERS
LAYER
NAME orthoEnhanced
TYPE RASTER
STATUS ON
PROJECTION init=epsg:4326
END
DATA O:\ortho.ecw
CLASS
STYLE
COLOR 110 50 100
OUTLINECOLOR 200 200 200
SYMBOL 0
END
END
END
END
And then created the layer for OpenLayers:
var msecw = new OpenLayers.Layer.MapServer(OpenLayers WMS,
http://127.0.0.1:81/cgi-bin/mapserv.exe?map=ecw.map;, {
layers: 'orthoEnhanced' });
map.addLayer(msecw);
All of my tiles are coming blank. Here is what Firebug says for the
MapServer requests:
http://127.0.0.1:81/cgi-bin/mapserv.exe?map=ecw.maplayers=orthoEnhancedmode=mapmap_imagetype=pngmapext=-79.162519+42.920835+-79.100019+42.983335imgext=-79.162519+42.920835+-79.100019+42.983335map_size=256+256imgx=128imgy=128imgxy=256+256
One thing I can see is that my extents in the request are Lat Long and the
Extents in the Map file are UTM 17. Should the map file be changed to Lat
Long? (And how do I convert the values)
If I were to hack around on the Mapserv.exe url, and remove everything in
the querystring except the following:
http://127.0.0.1:81/cgi-bin/mapserv.exe?map=ecw.mapmode=mapmap_imagetype=pnglayers=orthoEnhanced
then I get a picture of the full ortho. In my mind, that means that
MapServer can read the ecw file and generate a 256X256 PNG.
Once I append the coordinates that url, then I just get blank tiles.
Any help would be greatly appreciated!!!
Thanks,
Shawn
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Re: [OpenLayers-Users] MapServer Layer for ECW creating blank tiles
Chris, thanks for that tip. It really helps me to troubleshoot it. I think I have figured out the problem, but not sure how to fix it. Now that it is sending WMS requests, I can see the url and compare it to my other vector tiles. The problem is that the WMS requests are going out with Lat/Long values. When I converted the BBOX value to UTM it rendered perfectly. My question is how can I do this using OL? Can I have that layer request coordinates in UTM (17N) so that the URL hitting MapServer already has the value? Thanks again, Shawn Christopher Schmidt-2 wrote: Instead of using a MapServer layer, instead add the following to your mapfile: web metadata wms_srs EPSG:4326 end end If your OpenLayers Map is in a different projection, use EPSG:ThatProjection instead. Then, change MapServer above to WMS (nothing else) and see where you can get. I think you're likely dealing with a projection issue, and the WMS layer will make it easier to debug. -- Chris -- View this message in context: http://n2.nabble.com/MapServer-Layer-for-ECW-creating-blank-tiles-tp3092922p3093597.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] MapServer Layer for ECW creating blank tiles
I think I may approach this a little different. I created a custom tile caching handler and I can pass parameters to so that it will retrieve the image from MapServer. Is it possible to provide a custom url to the request string? For example, appending another value to the end of the request string for each tile? Christopher Schmidt-2 wrote: On Wed, Jun 17, 2009 at 08:43:13AM -0700, soatley wrote: You already have a WMS set up in OpenLayers, right? http://faq.openlayers.org/map/how-do-i-set-a-different-projection-on-my-map/ maybe relevant. -- View this message in context: http://n2.nabble.com/MapServer-Layer-for-ECW-creating-blank-tiles-tp3092922p3094118.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
Re: [OpenLayers-Users] MapServer Layer for ECW creating blank tiles
Chris, Forget about it I should have tried the simple stuff first. By appending my custom querystring value to the URL, openlayers just appended it's values to the end. Thanks for pointing me in the right direction with the WMS Map config. That was the turning point. Shawn soatley wrote: I think I may approach this a little different. I created a custom tile caching handler and I can pass parameters to so that it will retrieve the image from MapServer. Is it possible to provide a custom url to the request string? For example, appending another value to the end of the request string for each tile? Christopher Schmidt-2 wrote: On Wed, Jun 17, 2009 at 08:43:13AM -0700, soatley wrote: You already have a WMS set up in OpenLayers, right? http://faq.openlayers.org/map/how-do-i-set-a-different-projection-on-my-map/ maybe relevant. -- View this message in context: http://n2.nabble.com/MapServer-Layer-for-ECW-creating-blank-tiles-tp3092922p3094170.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Detect if key pressed during click
I have a custom handler for my click event that is my default click handler
to retrieve information from my WMS server:
OpenLayers.Control.Click = OpenLayers.Class(OpenLayers.Control, {
defaultHandlerOptions: {
'single': true,
'double': false,
'pixelTolerance': 0,
'stopSingle': false,
'stopDouble': false
},
initialize: function(options) {
this.handlerOptions = OpenLayers.Util.extend(
{}, this.defaultHandlerOptions
);
OpenLayers.Control.prototype.initialize.apply(
this, arguments
);
this.handler = new OpenLayers.Handler.Click(
this, {
'click': this.onClick
}, this.handlerOptions
);
},
onClick: function(e) {
/* do standard click function: query WMS, get feature, do popup,etc.
*/
}
});
How can I tell if someone was pressing the control key at the same time? I
saw some keyMask information and wasn't sure if I had to setup a different
Click Handler in order to get it to work.
The purpose for this is to determine whether someone wants to select
multiple items (properties, roads, etc.) or not. If the user is selecting a
single item (CTRL not pressed) then query the WMS server, show the popup and
create the feature. If the user is selecting multiple items (CTRL is
pressed) then query the WMS server and highlight the property and show the
list of selected items in another window. I can create my own code to do
all the WMS /feature/window stuff, just need some assistance detecting the
CTRL with the click and sending it to a different function.
Thanks!
Shawn
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[OpenLayers-Users] Framed Cloud Popup - Tail interferring with layer
I am having a problem using the popups to display data and have confirmed it with the 'Popup Matrix' example : http://www.openlayers.com/dev/examples/popupMatrix.html To re-create, click on the very bottom row of popups (overflow:hidden) of the first 'min size (400X400)' column. You should see the popup appear above the row. Now try and click on one of the markers right by the tail. The easiest one to try is the marker right above the one you just clicked on. This happens in Firefox, Safari and IE 8 (haven't tried 7). In Firefox/Safari, it is worse than IE. In IE, it is just the markers by the tail that are affected. In the others, it is the markers that are below the popup but parallel to the tail. This is a problem for me because I use popups to show property information and quite often, the properties are beside one-and-other or in that area below the popup. Has anyone tried a work-around for this? Thanks, Shawn -- View this message in context: http://n2.nabble.com/Framed-Cloud-Popup---Tail-interferring-with-layer-tp3067060p3067060.html Sent from the OpenLayers Users mailing list archive at Nabble.com. ___ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
[OpenLayers-Users] Add Feature and Pan into View
Hello,
Does anyone know how to have the map pan when adding a feature to a vector
layer so that the entire feature is in view?
Here's my code so far that works:
//define the popup
infoPopup = new OpenLayers.Popup.FramedCloud(info,
mouseLoc,
null,
div
style=\padding:5px;font-size:0.8em;\Loading.../div,
null, true, onPopupClose);
map.addPopup(infoPopup);
//load the url for the popup data
OpenLayers.loadURL(infoUrl, '', this, showTip);
In the showTip function, I parse the data that is returned, update the
content popup and create a feature. The feature coordinates (WKT) are
passed with the response.
var f = new OpenLayers.Format.WKT();
infoFeature = f.read(marker.find(points).text());
infoLayer.addFeatures([infoFeature], { style: default });
infoPopup.contentHTML = marker.find(result).text();
infoPopup.setContentHTML();
infoFeature.popup = infoPopup;
This code works great. If the popup is off the screen it pans into view.
Great! But, how can I do the same if the feature (a parcel) is partially
off the screen?
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Re: [OpenLayers-Users] Add Feature and Pan into View
Alexandre,
Thanks for your reply.
Can you explain the BBOX strategy a little more? It sounds like it will do
the trick, but I am still new to OpenLayers. It sounds like the zoom level
would change if I set the extent. (Or am I wrong?) I would just like it to
pan, similar to how the Popup pans, in order to get it into view.
Shawn
Alexandre Dube wrote:
Hi,
You could register a beforefeatureselected event on your vector layer
and set the map extent according to the feature's extent. I think that
if you use the BBOX strategy, since the feature was already drawn it
should remain the same when the map automatically pan/zoom to the
feature's extent.
What do you think ?
Alexandre
soatley wrote:
Hello,
Does anyone know how to have the map pan when adding a feature to a
vector
layer so that the entire feature is in view?
Here's my code so far that works:
//define the popup
infoPopup = new OpenLayers.Popup.FramedCloud(info,
mouseLoc,
null,
div
style=\padding:5px;font-size:0.8em;\Loading.../div,
null, true, onPopupClose);
map.addPopup(infoPopup);
//load the url for the popup data
OpenLayers.loadURL(infoUrl, '', this, showTip);
In the showTip function, I parse the data that is returned, update the
content popup and create a feature. The feature coordinates (WKT) are
passed with the response.
var f = new OpenLayers.Format.WKT();
infoFeature = f.read(marker.find(points).text());
infoLayer.addFeatures([infoFeature], { style: default });
infoPopup.contentHTML = marker.find(result).text();
infoPopup.setContentHTML();
infoFeature.popup = infoPopup;
This code works great. If the popup is off the screen it pans into view.
Great! But, how can I do the same if the feature (a parcel) is partially
off the screen?
--
Alexandre Dubé
Mapgears
www.mapgears.com
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