Hi, Leo
I am doing something very similar, but I did not use the OMGrid; I am
having problem display the area. Do you have any good algorithm to join
only the boundary points to create a polygon? Thanks.
At 11:12 AM 8/29/2005, Don Dietrick wrote:
>Hi Leo,
>
>You can use a OMGrid object for holding this data, and then you would
>give the OMGrid an OMGridGenerator that would create other OMGraphics
>from your data to render on behalf of the OMGrid.
>
>The com.bbn.openmap.omGraphics.grid package contains different
>OMGridGenerators, with the SimpleColorGenerator being one that takes
>the Z value as a color value, and creates and image for the data
>grid. You could create different objects instead of an image.
>
>Regards,
>
>Don
>
>On Aug 20, 2005, at 6:21 AM, Little Leo wrote:
>
>>Hi,
>>
>>i have a question in OpenMap.
>>
>>I wish to do a contour plot and my inputs will be like this, Assume
>>the X-Y as a rect surface length and breadth. Z is the depth. i.e
>>Graph the depth of a irregular shape.
>>
>> ( Array of X :: Array of Y :: Array of Z)
>>
>> X Y Z
>> 400 -200 -33
>> 445 -100 -64
>> 765 -567 -85
>> 543 -345 -56
>>
>>and the contour plot must be like
>>
>>1. First of all draw a area based on points (use only X-Y) boundry.
>>You will get a polygon by joining (only) the boundry points.
>>
>>2. Then draw the contour ( Z value) lines on this area.
>>
>>3. Show shaded colors on the regions of the contour line.
>>
>>This is nothing but a density graph + contour lines on a irregular
>>area.
>>
>>Is it possible to do using OpenMap. OR what do you feel. Based on
>>this feasibility only i can start my project.
>>
>>Am i missing anthing here ? let me knw ur views. Thanks for ur time.
>>
>>Cheers,
>>Leo
>>
>>--
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>
>
>
>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>Don Dietrick, dietrick_at_bbn.com
>BBN Technologies, Cambridge, MA
>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>
>
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>
>
Kim Nguyen
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Received on Tue Sep 06 2005 - 15:13:08 EDT