# Help example point heat map

**URL:** <https://mapwindow.discourse.group/t/help-example-point-heat-map/205>\
**Category:** MapWinGIS\
**Created:** [July 1, 2019, 4:22pm UTC](https://mapwindow.discourse.group/t/help-example-point-heat-map/205 "2019-07-01T16:22:49Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![luffy\_7557](https://avatars.discourse-cdn.com/v4/letter/l/97f17d/32.png) [@luffy\_7557](https://mapwindow.discourse.group/u/luffy_7557)\
**Post date:** [July 1, 2019, 4:22pm UTC](https://mapwindow.discourse.group/t/help-example-point-heat-map/205/1 "2019-07-01T16:22:49Z")

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Hello  
I need to do something same this, somebody can i help with an example or an idea,  
Thanks…  
Regards  
 ![PNG](https://global.discourse-cdn.com/free1/uploads/mapwindow1/original/1X/dcef97e7944d9038cfa7b7bfda22f5a609c73eb3.jpeg) ![Captura3333](https://global.discourse-cdn.com/free1/uploads/mapwindow1/original/1X/fef3ab78aee77576608d3b977f05a2d1f1fd04de.png)

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**Author:** ![pmeems](https://yyz2.discourse-cdn.com/free1/user_avatar/mapwindow.discourse.group/pmeems/32/9_2.png) [@pmeems](https://mapwindow.discourse.group/u/pmeems)\
**Post date:** [July 2, 2019, 2:07pm UTC](https://mapwindow.discourse.group/t/help-example-point-heat-map/205/2 "2019-07-02T14:07:04Z")

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This is not possible out-of-the-box with MapWinGIS, but you could try to draw on a drawing layer.  
Perhaps draw several circles using [DrawCircleEx](https://www.mapwindow.org/documentation/mapwingis4.9/group __map__ drawing__layers.html#gafa6c849e7ee7b863277dc8834afd7b8f)

You can also have a look at the [ShapeDrawingOptions](https://www.mapwindow.org/documentation/mapwingis4.9/class_shape_drawing_options.html#details). With this you can define two colors for your point:  
 ![image](https://global.discourse-cdn.com/free1/uploads/mapwindow1/original/1X/8d3d716e5477eeb5da8193a7c7710b8cdf783e33.png)

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<div class="post-metadata">

**Author:** ![luffy\_7557](https://avatars.discourse-cdn.com/v4/letter/l/97f17d/32.png) [@luffy\_7557](https://mapwindow.discourse.group/u/luffy_7557)\
**Post date:** [July 2, 2019, 6:30pm UTC](https://mapwindow.discourse.group/t/help-example-point-heat-map/205/3 "2019-07-02T18:30:40Z")

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Hello @pmeems  
Thank your precious help.  
I tried but i dont know how identifi the layer correctly, i move the map and the circles dosen’t move.  
My layerHandle is incorrectly i think.  
My code  
 ![PNG](https://global.discourse-cdn.com/free1/uploads/mapwindow1/original/1X/37bf1a001fbd306b686604a27a4b2c450d16d8bc.jpeg) ![1234](https://global.discourse-cdn.com/free1/uploads/mapwindow1/original/1X/d5927c19196086dd44cb3005f8273978d7ac1e33.png)

 ![12345](https://global.discourse-cdn.com/free1/uploads/mapwindow1/original/1X/ca0e45dcbbd1a0e05c4e2fa95afb56ef8651950d.png)

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<div class="post-metadata">

**Author:** ![pmeems](https://yyz2.discourse-cdn.com/free1/user_avatar/mapwindow.discourse.group/pmeems/32/9_2.png) [@pmeems](https://mapwindow.discourse.group/u/pmeems)\
**Post date:** [July 3, 2019, 7:14am UTC](https://mapwindow.discourse.group/t/help-example-point-heat-map/205/4 "2019-07-03T07:14:09Z")

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For your [NewDrawing()](https://www.mapwindow.org/documentation/mapwingis4.9/group __map__ drawing__layers.html#gac2886eb1c9466d70b7c3f9cceb5c9d8c) you should use [tkDrawReferenceList.dlSpatiallyReferencedList](https://www.mapwindow.org/documentation/mapwingis4.9/_enumerations_8cs.html#aff6b4a6a8a533653a15768175af398d2ac008c823a090749df6ccf2ecffd1ba93) instead of [tkDrawReferenceList.dlScreenReferencedList](https://www.mapwindow.org/documentation/mapwingis4.9/_enumerations_8cs.html#aff6b4a6a8a533653a15768175af398d2a5329db9d25ab780d2ec0dfcee9ddb6be)

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**Author:** ![jiri](https://avatars.discourse-cdn.com/v4/letter/j/53a042/32.png) [@jiri](https://mapwindow.discourse.group/u/jiri)\
**Post date:** [July 8, 2019, 7:28pm UTC](https://mapwindow.discourse.group/t/help-example-point-heat-map/205/5 "2019-07-08T19:28:43Z")

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Hi,  
which type of data do you use? Is that some point dataset? Would simple IDW method be sufficient for your task?  
Jiri

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<div class="post-metadata">

**Author:** ![pmeems](https://yyz2.discourse-cdn.com/free1/user_avatar/mapwindow.discourse.group/pmeems/32/9_2.png) [@pmeems](https://mapwindow.discourse.group/u/pmeems)\
**Post date:** [September 23, 2019, 1:31am UTC](https://mapwindow.discourse.group/t/help-example-point-heat-map/205/6 "2019-09-23T01:31:19Z")

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