VectorPlacemark Geometry (C1.Map)

VectorPlacemark Geometry (C1.Map)

Posted by: santer.p75 on 26 September 2023, 8:04 am EST

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  santer.p75

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  Posted 26 September 2023, 8:04 am EST - Updated 26 September 2023, 8:16 am EST

  Hi,

  i try to put Pins on the map control with the GPS coordinate like(45.469588, 9.179472) Milano Italy.
  
  But when i add a VectorPlacemark the position not in italy. Which coordinate system is used?

  Thanks for helping me

  Dim vpl As New C1.Win.Map.VectorPlacemark()
  
  _layer.Items.Add(vpl)
  
  …
  
  vpl.Geometry = New GeoPoint(45.469588, 9.179472)

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  kartik.dua

  

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  Posted 27 September 2023, 12:21 am EST

  Hi,

  The GeoPoint constructor accepts (X, Y) coordinates as parameters, which translates to (longitude, latitude). For marking the GPS coordinate of Milano (45.469588, 9.179472), you will need to update your code with

  vpl.Geometry = New GeoPoint(9.179472, 45.469588)

  Please see the attached sample project for reference (MapMarkers.zip)

  Best Regards,
  
  Kartik

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  santer.p75

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  Posted 28 September 2023, 5:50 am EST - Updated 28 September 2023, 6:06 am EST

  Thank you it works fine,

  how i can add a label to the marker? I tried this way but it will not show the label…

  Dim mark = New C1.Win.Map.VectorPlacemark()
  
  _layer.Items.Add(mark)

  'GeoPoint constructor accepts (X, Y) as paramaters, which translates to (longitude, latitude)
  
  mark.Geometry = New GeoPoint(lon, lat)

  mark.Marker.Size = New SizeF(20, 27.32F)
  
  mark.Marker.Shape = MarkerShape.Custom
  
  mark.Marker.CustomShape = New MarkShape()
  
  mark.Style.Stroke.Color = Color.DarkGray
  
  mark.Style.Stroke.Width = 1
  
  mark.Style.BackColor = Color.Red

  mark.Marker.LabelPosition = LabelPosition.Right
  
  mark.LabelStyle.BackColor = System.Drawing.Color.White
  
  mark.LabelWidth = 150
  
  mark.Marker.Caption = “Label next the Marker”

  Is there also a way to set the init position/zoom, so when i start the app i point quick to a position?

  Thank you…

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  kartik.dua

  

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  Posted 29 September 2023, 1:42 am EST

  Hi,

  1. To show a label alongside the marker, you will need to set the VectorLayer.LabelVisibility property.

  2. To zoom a specific location/marker, you can set the C1Map1.Viewport.Zoom and C1Map1.Viewport.Center properties.

  Please see the updated project for reference (MapMarkers_LabelAndZoom.zip).

  Best Regards,
  
  Kartik

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  santer.p75

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  Posted 29 September 2023, 3:15 am EST

  Thank you!