[mapserver-users] Drawing a line with a arrow

[Rui Gomes]

Greetings to all...

I'm need to draw a line with the indication of the direction. Is any
way to do this?

Thanks

-- 
  Rui Gomes
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RE: [mapserver-users] Drawing a line

[Fawcett, David]

If you just want to pass the feature in using a URL configuration, you wouldn't 
need to use mapscript.  Just have the empty layer in your map file and then 
pass the feature definition in like:
 
 
map_layer[3]=FEATURE+POINTS+-67.012+-16.952+-67.012+-17.450+END+TEXT+'A+test+line'+END...
 
David. 
 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roger 
André
Sent: Thursday, October 16, 2008 11:11 AM
To: ramya srinivasan
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] Drawing a line


Do you mean given as in submitted via a web page?  In that case I 
think I would use Python mapscript to add a LAYER similar to the one I sent 
below, but using the form variables submitted from the web page as the POINTS 
values.  Take a look at the chapter on Python Mapscript in the O'Reilley Web 
Mapping Illustrated book.  It explains it more clearly than I'm probably able 
to.

Perhaps someone else on the list has another idea.
--



On Wed, Oct 15, 2008 at 9:40 PM, ramya srinivasan [EMAIL PROTECTED] 
wrote:


Hi,
 Thanks for yor reply.Can u please tell me how to draw a line 
between two points given by the user?


On Wed, Oct 15, 2008 at 10:23 PM, Roger André [EMAIL 
PROTECTED] wrote:


You can add a new LAYER with a FEATURE that has the 2 
points specified in it, like this:

  LAYER
NAME 'line'
STATUS DEFAULT
TYPE LINE
FEATURE
  POINTS  -67.012 -16.952
-67.012 -17.450

  END
END
CLASS
  STYLE
COLOR 255 0 0
WIDTH 2
  END
END # class
  END # layer

##



On Wed, Oct 15, 2008 at 3:42 AM, ramya srinivasan 
[EMAIL PROTECTED] wrote:


Hi, 
 How to draw a line on the map between two 
points given by the user? What all should be included in the mapfile for this 
line layer.

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Re: [mapserver-users] Drawing a line

[Roger André]

You can add a new LAYER with a FEATURE that has the 2 points specified in
it, like this:

  LAYER
NAME 'line'
STATUS DEFAULT
TYPE LINE
FEATURE
  POINTS  -67.012 -16.952
-67.012 -17.450

  END
END
CLASS
  STYLE
COLOR 255 0 0
WIDTH 2
  END
END # class
  END # layer

##


On Wed, Oct 15, 2008 at 3:42 AM, ramya srinivasan [EMAIL PROTECTED]wrote:

 Hi, How to draw a line on the map between two points given by the user?
 What all should be included in the mapfile for this line layer.

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 mapserver-users@lists.osgeo.org
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[mapserver-users] Drawing a line

[ramya srinivasan]

Hi, How to draw a line on the map between two points given by the user? What
all should be included in the mapfile for this line layer.
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Re: [mapserver-users] Drawing a Line From A Set Start Point to End Point

[[EMAIL PROTECTED]]

Hi Lena, if tried this code and it works.

$mypoints=array(
  array(1,1),  // 1. point
  array(40,1),  // 1. point
  array(40,80),  // 1. point
  array(1,80),  // 1. point
  array(1,1),  // 1. point
)
$myline=ms_newLineObj();
foreach ($mypoints as $key = $value) {
   $myline-addXY($value[0],$value[1]);
}

//Create the shape object that will be added to the layer
$shape=ms_newShapeObj(MS_SHAPE_LINE);
$shape-add($myline);
$this_layer_tornado-addFeature($shape);

Erik


Hello,
I am trying to draw tornado paths on my map that I am creating, but I 
am having a little bit of trouble because now it won't even plot the 
initial point on my map. The following is my code for attempting to 
draw a line from start to finish. If anyone has any helpful 
information, it would be greatly appreciated


while($row=mysql_fetch_assoc($result)){
 $mypoint=ms_newPointObj();
 $mypoint-setXY($row['lon_td'],$row['lat_td']);
 $myline=ms_newLineObj();
 $myline-add($mypoint);
 $endpoint=ms_newPointObj();
 $endpoint-setXY($row['lon_lift'],$row['lat_lift']);
 $myline-add($endpoint);
 $mypoint-draw($map,$this_layer_tornado,$image,0,'');
}

//Create the shape object that will be added to the layer
$shape=ms_newShapeObj(MS_SHAPE_LINE);
$shape-add($myline);
$this_layer_tornado-addFeature($shape);

Thank you,
Lena

--
*Lena Olympio*


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