Multiple tracks wip
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djes
125
PBMap.pb
125
PBMap.pb
@@ -40,6 +40,7 @@ DeclareModule PBMap
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#MODE_SELECT = 2
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#MODE_EDIT = 3
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;-Declarations
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Declare InitPBMap(window)
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Declare SetOption(Option.s, Value.s)
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Declare LoadOptions(PreferencesFile.s = "PBMap.prefs")
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@@ -50,7 +51,8 @@ DeclareModule PBMap
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Declare SetLocation(latitude.d, longitude.d, Zoom = -1, mode.i = #PB_Absolute)
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Declare Drawing()
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Declare SetZoom(Zoom.i, mode.i = #PB_Relative)
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Declare ZoomToArea()
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Declare ZoomToArea(MinY.d, MaxY.d, MinX.d, MaxX.d)
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Declare ZoomToTracks(*Tracks)
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Declare SetCallBackLocation(*CallBackLocation)
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Declare SetCallBackMainPointer(CallBackMainPointer.i)
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Declare SetMapScaleUnit(ScaleUnit=PBMAP::#SCALE_KM)
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@@ -176,6 +178,10 @@ Module PBMap
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ServerURL.s ; Web URL ex: http://tile.openstreetmap.org/
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EndStructure
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Structure Tracks
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List Track.GeographicCoordinates() ; To display a GPX track
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EndStructure
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;-PBMap Structure
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Structure PBMap
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Window.i ; Parent Window
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@@ -206,7 +212,7 @@ Module PBMap
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Moving.i
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Dirty.i ; To signal that drawing need a refresh
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List track.GeographicCoordinates() ; To display a GPX track
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List TracksList.Tracks()
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List Markers.Marker() ; To diplay marker
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EditMarker.l
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@@ -667,21 +673,23 @@ Module PBMap
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Protected *MainNode,*subNode,*child,child.l
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*MainNode=MainXMLNode(0)
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*MainNode=XMLNodeFromPath(*MainNode,"/gpx/trk/trkseg")
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ClearList(PBMap\track())
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Protected *NewTrack.Tracks = AddElement(PBMap\TracksList())
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;ClearList(PBMap\track())
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For child = 1 To XMLChildCount(*MainNode)
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*child = ChildXMLNode(*MainNode, child)
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AddElement(PBMap\track())
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AddElement(*NewTrack\Track())
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If ExamineXMLAttributes(*child)
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While NextXMLAttribute(*child)
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Select XMLAttributeName(*child)
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Case "lat"
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PBMap\track()\Latitude=ValD(XMLAttributeValue(*child))
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*NewTrack\Track()\Latitude=ValD(XMLAttributeValue(*child))
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Case "lon"
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PBMap\track()\Longitude=ValD(XMLAttributeValue(*child))
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*NewTrack\Track()\Longitude=ValD(XMLAttributeValue(*child))
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EndSelect
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Wend
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EndIf
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Next
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ZoomToTracks(LastElement(PBMap\TracksList())) ; <-To center the view, and zoom on the tracks
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EndIf
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EndProcedure
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@@ -1002,47 +1010,51 @@ Module PBMap
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DrawVectorText(Str(dist))
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EndProcedure
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Procedure DrawTrack(*Drawing.DrawingParameters)
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Procedure DrawTracks(*Drawing.DrawingParameters)
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Protected Pixel.PixelCoordinates
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Protected Location.GeographicCoordinates
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Protected km.f, memKm.i
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If ListSize(PBMap\track())>0
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;Trace Track
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ForEach PBMap\track()
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;Trace Track
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ForEach PBMap\TracksList()
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ForEach PBMap\TracksList()\Track()
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;If *Drawing\GeographicCoordinates\Latitude<>0 And *Drawing\GeographicCoordinates\Longitude<>0
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LatLon2PixelRel(@PBMap\track(), @Pixel, PBMap\Zoom)
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If ListIndex(PBMap\track())=0
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LatLon2PixelRel(@PBMap\TracksList()\Track(), @Pixel, PBMap\Zoom)
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If ListIndex(PBMap\TracksList()\Track()) = 0
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MovePathCursor(Pixel\X, Pixel\Y)
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Else
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AddPathLine(Pixel\X, Pixel\Y)
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EndIf
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EndIf
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;EndIf
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Next
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VectorSourceColor(RGBA(0, 255, 0, 150))
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StrokePath(10, #PB_Path_RoundEnd|#PB_Path_RoundCorner)
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;Draw Distance
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ForEach PBMap\track()
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;Test Distance
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If ListIndex(PBMap\track())=0
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Location\Latitude=PBMap\track()\Latitude
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Location\Longitude=PBMap\track()\Longitude
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Else
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km=km+HaversineInKM(@Location,@PBMap\track()) ;<- display Distance
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Location\Latitude=PBMap\track()\Latitude
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Location\Longitude=PBMap\track()\Longitude
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EndIf
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If PBMap\Options\TrackShowKms
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LatLon2PixelRel(@PBMap\track(),@Pixel, PBMap\Zoom)
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If Int(km)<>memKm
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memKm=Int(km)
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If PBMap\Zoom>10
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BeginVectorLayer()
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Next
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;Draw Distance
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If PBMap\Options\TrackShowKms
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BeginVectorLayer()
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ForEach PBMap\TracksList()
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km = 0
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ForEach PBMap\TracksList()\Track()
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;Test Distance
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If ListIndex(PBMap\TracksList()\Track()) = 0
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Location\Latitude = PBMap\TracksList()\Track()\Latitude
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Location\Longitude = PBMap\TracksList()\Track()\Longitude
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Else
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km = km + HaversineInKM(@Location, @PBMap\TracksList()\Track())
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Location\Latitude = PBMap\TracksList()\Track()\Latitude
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Location\Longitude = PBMap\TracksList()\Track()\Longitude
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EndIf
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LatLon2PixelRel(@PBMap\TracksList()\Track(), @Pixel, PBMap\Zoom)
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If Int(km) <> memKm
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memKm = Int(km)
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If PBMap\Zoom > 10
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TrackPointer(Pixel\X , Pixel\Y, Int(km))
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EndVectorLayer()
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EndIf
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EndIf
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EndIf
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Next
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Next
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EndVectorLayer()
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EndIf
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EndProcedure
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@@ -1174,7 +1186,7 @@ Module PBMap
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DrawTiles(*Drawing, ListIndex(PBMap\Layers()))
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Next
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If PBMap\Options\ShowTrack
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DrawTrack(*Drawing)
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DrawTracks(*Drawing)
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EndIf
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If PBMap\Options\ShowMarkers
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DrawMarkers()
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@@ -1252,24 +1264,9 @@ Module PBMap
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EndIf
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EndProcedure
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Procedure ZoomToArea()
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Procedure ZoomToArea(MinY.d, MaxY.d, MinX.d, MaxX.d)
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;Source => http://gis.stackexchange.com/questions/19632/how-to-calculate-the-optimal-zoom-level-to-display-two-or-more-points-on-a-map
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;bounding box in long/lat coords (x=long, y=lat)
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Protected MinY.d,MaxY.d,MinX.d,MaxX.d
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ForEach PBMap\track()
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If ListIndex(PBMap\track())=0 Or PBMap\track()\Longitude<MinX
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MinX=PBMap\track()\Longitude
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EndIf
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If ListIndex(PBMap\track())=0 Or PBMap\track()\Longitude>MaxX
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MaxX=PBMap\track()\Longitude
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EndIf
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If ListIndex(PBMap\track())=0 Or PBMap\track()\Latitude<MinY
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MinY=PBMap\track()\Latitude
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EndIf
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If ListIndex(PBMap\track())=0 Or PBMap\track()\Latitude>MaxY
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MaxY=PBMap\track()\Latitude
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EndIf
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Next
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Protected DeltaX.d=MaxX-MinX ;assumption ! In original code DeltaX have no source
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Protected centerX.d=MinX+DeltaX/2 ; assumption ! In original code CenterX have no source
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Protected paddingFactor.f= 1.2 ;paddingFactor: this can be used to get the "120%" effect ThomM refers to. Value of 1.2 would get you the 120%.
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@@ -1294,6 +1291,31 @@ Module PBMap
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EndIf
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EndProcedure
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Procedure ZoomToTracks(*Tracks.Tracks)
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Protected MinY.d, MaxY.d, MinX.d, MaxX.d
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If ListSize(*Tracks\Track()) > 0
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With *Tracks\Track()
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FirstElement(*Tracks\Track())
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MinX = \Longitude : MaxX = MinX : MinY = \Latitude : MaxY = MinY
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ForEach *Tracks\Track()
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If \Longitude < MinX
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MinX = \Longitude
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EndIf
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If \Longitude > MaxX
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MaxX = \Longitude
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EndIf
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If \Latitude < MinY
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MinY = \Latitude
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EndIf
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If \Latitude > MaxY
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MaxY = \Latitude
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EndIf
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Next
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ZoomToArea(MinY.d, MaxY.d, MinX.d, MaxX.d)
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EndWith
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EndIf
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EndProcedure
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Procedure SetZoom(Zoom.i, mode.i = #PB_Relative)
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Select mode
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Case #PB_Relative
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@@ -1712,7 +1734,6 @@ CompilerIf #PB_Compiler_IsMainFile
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PBMap::SetZoom( - 1)
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Case #Gdt_LoadGpx
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PBMap::LoadGpxFile(OpenFileRequester("Choose a file to load", "", "Gpx|*.gpx", 0))
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PBMap::ZoomToArea() ; <-To center the view, and zoom on the tracks
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Case #StringLatitude, #StringLongitude
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Select EventType()
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Case #PB_EventType_LostFocus
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@@ -1744,8 +1765,8 @@ CompilerIf #PB_Compiler_IsMainFile
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CompilerEndIf
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; IDE Options = PureBasic 5.50 (Windows - x64)
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; CursorPosition = 1500
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; FirstLine = 1478
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; CursorPosition = 1035
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; FirstLine = 1013
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; Folding = -------------
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; EnableThread
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; EnableXP
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