[Chameleon] Re: javascrips ROI tool

[Gerry Creager N5JXS]

Bart,

Thanks!
gerry

Bart van den Eijnden wrote:
> Hi Gerry,
> 
> I am cc-ing the list, maybe someone else is interested so I don't have to repeat myself :-)
> 
> What I did is:
> 
> 1)
> 
> add ROIManager and ROICircle tool to the HTML template:
> 
> <cwc2 type="ROIManager" mode="normal" />
> 
> <cwc2 type="ROICircleTool" visible="false" styleresource="NavButtons" image="images/icon_roi_ellipse.png" imagetip="Define a circular ROI" toolset="Navigation" numberofpoints="0">
>         <image state="normal"/>
>         <image state="selected"/>
>         <image state="hover"/>
>       </cwc2>
> 
> 2)
> 
> Plug in my own query mechanism like described on the Chameleon Wiki:
> 
>   goEventManager.registerForEvent('ON_QUERY', 'stragiswebquery');
> 
> 3) Create the javascript which draws the ROI
> 
> function stragiswebquery( nX, nY )
> {
>   if ((document.forms[0].RADIUS) && (document.forms[0].RADIUS.value != ""))
>   {
>     iRadiusGeo = document.forms[0].RADIUS.value;
>     iRadiusPix = (iRadiusGeo/(goCWCJSAPI.oMap.maxx-goCWCJSAPI.oMap.minx))*gMapWiWidth;
> 
>     if ((parseInt(document.forms[0].RADIUS.value) >= 0) && (parseInt(document.forms[0].RADIUS.value) <= 1000))
>     {
>       ROICircleToolInitObjects();
>       ROICircleToolStartZoomBox();
>       goROICircleObj.centerX = nX;
>       goROICircleObj.centerY = nY;
>       goROICircleObj.radius = iRadiusPix;
>       goROICircleObj.edgeColor = '0000FF';
>       goROICircleObj.edgeWidth = 5;
>       goROICircleObj.fillOpacity = 1;
>       goCWCROIManager.Add(goROICircleObj);
>   }
> }
> 
> Hope this helps.
> 
> Best regards,
> Bart
> 
> Bart van den Eijnden
> Syncera IT Solutions
> Postbus 270
> 2600 AG  DELFT
> 
> tel.nr.: 015-7512436
> email: BEN at Syncera-ITSolutions.nl
> 
> 
>>>>Gerry Creager N5JXS <gerry.creager at tamu.edu> 06/22/05 04:10pm >>>
> 
> Bart,
> 
> Yes, I would appreciate a copy of your ROI tool.
> 
> Thanks!
> gerry

-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843