Re: [svg-developers] Re: click coordinates not of object
On Sat, 20 Nov 2010 16:37:57 +0100, Kenneth N nelli...@verizon.net wrote: --- In svg-developers@yahoogroups.com, Holger Jeromin mailgm...@... wrote: Narendra Sisodiya schrieb am 20.11.2010 05:36: ... offsetX is only available in opera, safari, chrome. layerX is available in safari, chrome, firefox clientx is available in all: opera, chrome, safari, firefox and adobe svg viewer pageX is available in all browsers (no adobe plugin) and is independant from the scrolling. But the problem is still that the offset of document.getElementById(grid) compared to the page is apparently not available. This is really suprising to me. I have not found a solution. ... Thank you for your response. Another difference I just noticed is that Safari responds to the onclick handler if anywhere in the viewBox is clicked Sounds like a Safari bug to me. The event must have a target element inside the g element to be able to hit the g element (through event bubbling) since the g itself has no geometry that can be clicked. whereas Firefox and Opera require you to click right on one of the lines, so this is a separate problem to fix. This ought to be one of the first things tought in SVG courses, event shields / event capturing regions - just put a rect inside the g element where you want the events to be captured. Or since you have a simple grid, put the eventlistener on the root element and then check the coordinates to see which gridsquare was hit. Using your examples it could look like this for example: ... g id=grid style=stroke: black stroke-width=.02 rect width=10 height=10 fill=white/ !-- horizontal lines -- line x1=0 y1=0 x2=10 y2=0 / ... And Opera's responses using offsetX/Y appear to be complete garbage! Note: the spec that defines offsetX/Y and pageX,Y is still in an unstable state (working draft), http://www.w3.org/TR/cssom-view/. ClientX,Y is the only pair that is defined in a stable w3c specification (DOM Level 2 Events), http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-MouseEvent. I'm pretty sure that the coordinate system of offsetX/Y are not in svg user units of the target element (unless it's the root element possibly), so if you're looking for that then you will have to convert them anyway. Anyway, I'm still open to ideas and offer links to the original version (offsetXY) as well as links to versions using clientXY and pageXY. http://tinyurl.com/offsetXY-svg http://tinyurl.com/clientXY-svg http://tinyurl.com/PageXY-svg Here are a few blogposts of mine that deal with the coordinate-space conversions you are struggling with: http://my.opera.com/MacDev_ed/blog/2010/02/01/how-to-get-all-svg-elements-intersected-by-a-given-rectangle http://my.opera.com/MacDev_ed/blog/getting-screen-boundingboxes-in-svg http://my.opera.com/MacDev_ed/blog/2009/01/21/getting-boundingbox-of-svg-elements I tend to go with clientX,Y since there are built-in methods[1][2] that allow rather easy transformation (ok, i would like it to be easier still, but it's not that hard to hide the tricky bits in a script utility function) to the right coordinate space, see e.g the example in the second example above. Unless you expect document scrolling or if you have svg inline inside an (X)HTML document then clientX,Y should be sufficient for all cases. A combination (or an alternative [3]) can be used for the other cases. In general if you have a viewBox and your viewport (defined by the container, usually html/css) is not using the same aspect ratio then you will need to transform coordinates. Cheers /Erik [1] http://www.w3.org/TR/SVG11/types.html#InterfaceSVGLocatable [2] http://www.w3.org/TR/SVG11/coords.html#InterfaceSVGMatrix [3] http://xn--dahlstrm-t4a.net/svg/examples/FixedPositionGroupInScript.svg -- Erik Dahlstrom, Core Technology Developer, Opera Software Co-Chair, W3C SVG Working Group Personal blog: http://my.opera.com/macdev_ed - To unsubscribe send a message to: svg-developers-unsubscr...@yahoogroups.com -or- visit http://groups.yahoo.com/group/svg-developers and click edit my membership Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) * To change settings via email: svg-developers-dig...@yahoogroups.com svg-developers-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: svg-developers-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[svg-developers] Re: click coordinates not of object
I appreciate the responses I got to this issue. Thank you! BTW, Erik, the SVG cartoon [1] on your personal blog page [2] doesn't render in Mac/Safari 4.1.3 or Mac/Firefox 3.6.12; instead the browsers diagnose XML parsing errors. I suspect either they don't recognize the compressed SVG format (.svgz) of the cartoon or maybe the type specification (image/svg+xml) should be different for .svgz files? FWIW. —Ken Nellis [1] http://files.myopera.com/MacDev_ed/files/ hittesting_public_domain.svgz [2] http://my.opera.com/macdev_ed - To unsubscribe send a message to: svg-developers-unsubscr...@yahoogroups.com -or- visit http://groups.yahoo.com/group/svg-developers and click edit my membership Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) * To change settings via email: svg-developers-dig...@yahoogroups.com svg-developers-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: svg-developers-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[svg-developers] Re: click coordinates not of object
BTW, Erik, the SVG cartoon [1] on your personal blog page [2] doesn't render in Mac/Safari 4.1.3 or Mac/Firefox 3.6.12; instead the browsers diagnose XML parsing errors. I suspect either they don't recognize the compressed SVG format (.svgz) of the cartoon or maybe the type specification (image/svg+xml) should be different for .svgz files? FWIW. Firefox and Safari do support compressed svg files but they must be served with Content-Encoding: gzip set in the http response. Best regards Robert. - To unsubscribe send a message to: svg-developers-unsubscr...@yahoogroups.com -or- visit http://groups.yahoo.com/group/svg-developers and click edit my membership Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) * To change settings via email: svg-developers-dig...@yahoogroups.com svg-developers-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: svg-developers-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [svg-developers] US Map with US Census data
Nice. cartographer grumble don't use a value map (choropleth) for absolute values (data of measurement level ratio), Its perception properties makes for confused readers... /cartographer grumble :-) as an example of the power of SVG (for which I am sure it was meant), it is of course excellent. Note that on a display with portrait ratio the map is obscuring the title. Yours, -- Barend Köbben (Senior Lecturer) ITC - University of Twente, Faculty of Geo-Information Science and Earth Observation PO Box 217, 7500AE Enschede (The Netherlands) +31-(0)53 4874 253 From: ddailey ddai...@zoominternet.netmailto:ddai...@zoominternet.net Reply-To: svg-developers@yahoogroups.commailto:svg-developers@yahoogroups.com svg-developers@yahoogroups.commailto:svg-developers@yahoogroups.com Date: Sun, 21 Nov 2010 22:12:52 +0100 To: svg-developers@yahoogroups.commailto:svg-developers@yahoogroups.com svg-developers@yahoogroups.commailto:svg-developers@yahoogroups.com Subject: [svg-developers] US Map with US Census data Here's a little something I cobbled together in the past couple of days. http://granite.sru.edu/~ddailey/usmap.svg It works in Opera, Firefox, Chrome and Safari, but not in ASV(IE). I've not tested it in IE9, but would be interested to know if it works there. I took a gnu-licensed SVG map from Wikimedia Commons and then wrote AJAX and JavaScript and PHP to take data from the US Census bureau's 82 variable set, shading the states accordingly. After a variable is chosen then you can mouseover each state to see its numeric value on that variable. Since it borrows from something with a GNU license I suppose you can't make profit out of it, but feel free to improve and share! cheers David [Non-text portions of this message have been removed] Faculty of Geo-Information Science and Earth Observation (ITC) University of Twente Chamber of Commerce: 50130536 E-mail disclaimer The information in this e-mail, including any attachments, is intended for the addressee only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or action in relation to the content of this information is strictly prohibited. If you have received this e-mail by mistake, please delete the message and any attachment and inform the sender by return e-mail. ITC accepts no liability for any error or omission in the message content or for damage of any kind that may arise as a result of e-mail transmission. [Non-text portions of this message have been removed] - To unsubscribe send a message to: svg-developers-unsubscr...@yahoogroups.com -or- visit http://groups.yahoo.com/group/svg-developers and click edit my membership Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) * To change settings via email: svg-developers-dig...@yahoogroups.com svg-developers-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: svg-developers-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
