Then the first article, continuing, is the second part of the FrMain.cs file in addition to the code in the first article:
//*******************************
#region Create custom tools to measure distances (can be polylines) and measure area
888
private void Mapmain_polytoolused (object sender, Axmapxlib.cmapxevents_polytoolusedevent e)//After creating a tool of your own definition, Selects execution based on tool ID
{
if (E.toolnum = = 10)//measuring distance, this is a custom tool that measures the distance of multiple points
{
mapxlib.points pts = (mapxlib.points) e.points;
Mapxlib.point Pt1,pt2;
Double d=0.0;
Calculate order two points distance, accumulate total distance
for (int i=1;i<pts. count;i++)
{
Pt1=pts._item (i);
Pt2=pts._item (i+1);
D + + axmap1.distance (pt1. X,pt1. Y,pt2. X,pt2. Y);
}
Label1. text= "Distance:" + d.tostring ();
}
else if (E.toolnum = 11)//area, this is a custom tool, this is borrowed from a Netizen's article, thank you
{
mapxlib.points pts = (mapxlib.points) e.points;
Mapxlib.featurefactory dd = axmap1.featurefactory;
Mapxlib.style Style = Axmap1.defaultstyle;
Label1. text= "Area:" + DD. Createregion (Pts,style). Area.tostring ();
}
}
#endregion
//*******************************
private void Axmap1_mapviewchanged (object sender, System.EventArgs e)//show proportions when map size changes
{
Label1. Text=axmap1.zoom.tostring ();
}
//*******************************
private void Mutuceng_click (object sender, System.EventArgs e)//Menu button event, display Layer Control Panel
{
AXMAP1.LAYERS.LAYERSDLG (Null,null);
}
private void Menuitem31_click (object sender, System.EventArgs e)//menu button event, show layer layer Select Display window
{
Frmviewlyr frm=new Frmviewlyr ();
frm. Owner=this;
frm. ShowDialog ();
}
private void Menuitem32_click (object sender, System.EventArgs e)//menu button events, controlling the display scale of layers in a new window, etc.
{
#region the magnification of the control layer in the new window, here is the omitted code
Omitted here, the main use is mapunit and Mapzoom *******************
Here is pseudocode, is the mapx5.0 of the sample program VB code, and the same as above
//
Zoomtext.text = FMainForm.Map1.Zoom
' Set the Unit combo box to the '
' Take a short cut:units # 0 through correspond to Combo list number
If FMainForm.Map1.MapUnit < Then
Unitcombo.listindex = FMainForm.Map1.MapUnit
Else
Select Case FMainForm.Map1.MapUnit
Case Miunitlink
Unitcombo.listindex = 14
Case Miunitchain
Unitcombo.listindex = 15
Case Miunitrod
Unitcombo.listindex = 16
End Select
End If
' Save the ' parameters so ' view can be
' Restored if ' Cancel ' is pressed
Oldzoom = FMainForm.Map1.Zoom
Oldunit = FMainForm.Map1.MapUnit
#endregion
}
//*******************************
private void Axmap1_thememodifyrequested (object sender, Axmapxlib.cmapxevents_thememodifyrequestedevent e)
{
E.theme
}
private void Axmap1_mousedownevent (object sender, Axmapxlib.cmapxevents_mousedownevent e)
{
e.button=
}
private void Menuitem4_click (object sender, System.EventArgs e)//Menu button event, general selection map
{
Axmap1.currenttool=mapxlib.toolconstants.miselecttool;
Menuitem4.radiocheck=true;
}
private void Menuitem5_click (object sender, System.EventArgs e)//menu button event, rectangular selection map
{
Axmap1.currenttool=mapxlib.toolconstants.mirectselecttool;
Menuitem5.radiocheck=true;
}
private void Menuitem6_click (object sender, System.EventArgs e)//menu button event, circle Select Map
{
Axmap1.currenttool=mapxlib.toolconstants.miradiusselecttool;
Menuitem6.radiocheck=true;
}
private void Menuitem7_click (object sender, System.EventArgs e)
{
Axmap1.currenttool=mapxlib.toolconstants.mipolygonselecttool; Menu button events, polygon selection map
Menuitem7.radiocheck=true;
}
private void Menuitem8_click (object sender, System.EventArgs e)
{
Axmap1.currenttool=mapxlib.toolconstants.milabeltool; Menu button events, line callout map
}
private void Menuitem9_click (object sender, System.EventArgs e)
{
Axmap1.currenttool=mapxlib.toolconstants. ; Menu button Events, polyline callout Map
}
private void Menuitem11_click (object sender, System.EventArgs e)
{
Axmap1.currenttool=mapxlib.toolconstants.misymboltool; Menu button events, creating tools that can add symbols to the map, is actually a annotations operation on MAPX
}
private void Menuitem12_click (object sender, System.EventArgs e)
{
Axmap1.currenttool=mapxlib.toolconstants.mitexttool; Menu button events, creating tools that can add text to the map, is actually a annotations operation on MAPX
}
private void Menuitem13_click (object sender, System.EventArgs e)
{
AxMap1.Annotations.RemoveAll (); To remove all the annotation information is actually the annotations operation of MAPX.
}
private void Menuitem14_click (object sender, System.EventArgs e)
{
Gistestbymyself. Frmannotation frm=new frmannotation (AxMap1.DefaultStyle.Clone ());
frm. Owner=this;
frm. ShowDialog (); Unfinished, see D:\Program files\mapinfo\mapx 5.0\samples50\visualbasic\vb5sample
}
private void Menuitem16_click (object sender, System.EventArgs e)//menu button event, displaying Properties window
{
Axmap1.propertypage ();
}
private void Menuitem19_click (object sender, System.EventArgs e)//Display mapx About dialog box
{
Axmap1.aboutbox ();
}
private void Menuitem29_click (object sender, System.EventArgs e)//menu button event, call window, change coordinates of map, or call projection
{
AxMap1.DisplayCoordSys.PickCoordSys (Null,null);
Axmap1.numericcoordsys=axmap1.displaycoordsys;
}
private void Axmap1_mouseupevent (object sender, Axmapxlib.cmapxevents_mouseupevent e)//mouse event, right-click, Popup property box
{
if (e.button==2)
Axmap1.propertypage ();
}
