C#+MO implementation of a road editing software (just started) _c# tutorial

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Main Window Program





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Using System;


Using System.Collections.Generic;


Using System.ComponentModel;


Using System.Data;


Using System.Drawing;


Using System.Text;


Using System.Windows.Forms;





Namespace IRND_DPT


{


public partial class Frmmain:form


{


Irnd_dpt.layervariable publayervariable = new layervariable ();


Public Frmmain ()


{


InitializeComponent ();


}


Add Layers


private void Tlbaddlayer_click (object sender, EventArgs e)


{


Irnd_dpt. OpenFile addfile = new OpenFile ();


Addfile.openshapefiles (CD1,AXMAP1);





Object Refmap = (object) This.axmap1;


bool Reftrue = true;


Short Refshort = 0;


Axlegend1.setmapsource (ref Refmap);


Axlegend1. Showalllegend ();


Axlegend1. Loadlegend (ref reftrue);


Axlegend1.set_active (ref refshort, True);


Axmap1.refresh ();


Axlegend1. Refresh ();





AddFile (CD1, AXMAP1);


}


Remove Layers


private void Toolstripbutton4_click (object sender, EventArgs e)


{


if (publayervariable.maplayerindex >= 0)


{


for (int i = 0; I <= axmap1.layers.count-1; i++)


{


AxMap1.Layers.Remove (Publayervariable.maplayerindex);


Break


}


bool Reftrue = true;


Axmap1.refresh ();


Axlegend1. Loadlegend (ref reftrue);


}





}


private void Axlegend1_aftersetlayervisible (object sender,axsamplelegendcontrol.__legend_ Aftersetlayervisibleevent e)


{


Axmap1.refresh ();


}





private void Axlegend1_layerdblclick (object sender, Axsamplelegendcontrol.__legend_layerdblclickevent e)


{





}





private void Axlegend1_mousedownevent (object sender, Axsamplelegendcontrol.__legend_mousedownevent e)


{





if (e.index >= 0)


{


Mapobjects2.maplayer layer= (Mapobjects2.maplayer) AxMap1.Layers.Item (E.index);


Publayervariable.maplayername = layer. Name;


Publayervariable.maplayerindex = E.index;


}


AxMap1.TrackingLayer.Refresh (True, axmap1.extent);


}


Amplification


private void Tlb_zoomin_click (object sender, EventArgs e)


{


Axmap1.mousepointer = MapObjects2.MousePointerConstants.moZoomIn;


}


Narrow


private void Tlb_zoomout_click (object sender, EventArgs e)


{


Axmap1.mousepointer = MapObjects2.MousePointerConstants.moZoomOut;


}


Roaming


private void Tlb_pan_click (object sender, EventArgs e)


{


Axmap1.mousepointer = MapObjects2.MousePointerConstants.moPan;


}


Full picture


private void Tbl_full_click (object sender, EventArgs e)


{


Axmap1.extent = axmap1.fullextent;


Axmap1.mousepointer = MapObjects2.MousePointerConstants.moArrow;


}


Gradually enlarge


private void Tbl_smallin_click (object sender, EventArgs e)


{


Mapobjects2.rectangle r = axmap1.extent;


R.scalerectangle (0.9);


Axmap1.extent = R;


}


Gradually shrinking


private void Tbl_smallout_click (object sender, EventArgs e)


{


Mapobjects2.rectangle r = axmap1.extent;


R.scalerectangle (1.1);


Axmap1.extent = R;


}


Select query


private void Tbl_identify_click (object sender, EventArgs e)


{


Axmap1.mousepointer = MapObjects2.MousePointerConstants.moIdentify;


}


Property browsing


private void Toolstripbutton2_click (object sender, EventArgs e)


{


if (publayervariable.maplayerindex >= 0 & publayervariable.maplayername!= null)


{


Mapobjects2.maplayer Lyr = (mapobjects2.maplayer) axMap1.Layers.Item (publayervariable.maplayername);


Irnd_dpt.frmbrowseattr frmbrowset = new Frmbrowseattr ();


Frmbrowset.inilistview (LYR);


Frmbrowset.showdialog (this);


}


}


Map Response Events


private void Axmap1_mousedownevent (object sends, Axmapobjects2._dmapevents_mousedownevent e)


{


Mapobjects2.rectangle rect;


Mapobjects2.point curp;


Mapobjects2.maplayer Lyr;


Mapobjects2.recordset rest;





Switch (axmap1.mousepointer)


{


Amplification


Case MAPOBJECTS2.MOUSEPOINTERCONSTANTS.MOZOOMIN:


{


Rect = Axmap1.trackrectangle ();


if (rect. Width = = 0 | | Rect. Height = 0)


{


rect = axmap1.extent;


Rect. Scalerectangle (0.5);


}


Axmap1.extent = rect;


Break


}


Narrow


Case MapObjects2.MousePointerConstants.moZoomOut:


{


Mapobjects2.rectangle TEMPR;


TEMPR = axmap1.extent;


Rect = Axmap1.trackrectangle ();


Double NEWSR;


if (rect. Width!= 0 | | Rect. Height!= 0)


{


if (axmap1.extent.width/rect. Width > Axmap1.extent.height/rect. Height)


{


NEWSR = Axmap1.extent.height/rect. Height;


}


Else


{


NEWSR = Axmap1.extent.width/rect. Width;


}


Tempr.scalerectangle (NEWSR);


}


Else


{


Tempr.scalerectangle (2.0);


}


Axmap1.extent = TEMPR;


Break


}


Roaming


Case MapObjects2.MousePointerConstants.moPan:


{


Axmap1.pan ();


Break


}


Select query


Case MapObjects2.MousePointerConstants.moIdentify:


{


if (publayervariable.maplayerindex >= 0 && publayervariable.maplayername!= "")


{


Rect = Axmap1.trackrectangle ();


LYR = (mapobjects2.maplayer) axMap1.Layers.Item (Publayervariable.maplayerindex);


if (rect. Width = = 0)


{


Curp = Axmap1.tomappoint (e.x, e.y);


Rest = Lyr. Searchbydistance (Curp, (Double) axmap1.tomapdistance ((float) screen.primaryscreen.workingarea.x * 5), "");


}


Else


{


Rest = Lyr. Searchshape (Rect, MapObjects2.SearchMethodConstants.moAreaIntersect, "");


}


if (rest. Eof!=true)


{


Axmap1.flashshape (rest. Fields.item ("shape"). Value, 2);


Irnd_dpt.frmidentify Functionclass = new Frmidentify ();


Functionclass.close ();


Functionclass.currecordset (rest);


Functionclass.initvfeat (rest, Lyr. Name);


Functionclass.inilvwattr (rest);


Functionclass.show (this);


}


}


Break


}


}


}








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}


}





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Property Query





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Using System;


Using System.Collections.Generic;


Using System.ComponentModel;


Using System.Data;


Using System.Drawing;


Using System.Text;


Using System.Windows.Forms;





Namespace IRND_DPT


{


public partial class Frmidentify:form


{


Mapobjects2.recordset Mrs;





Public Frmidentify ()


{


InitializeComponent ();


}


private void Frmidentify_load (object sender, System.EventArgs e)


{


Lvwattr.view = View.Details;


LvwAttr.Columns.Add ("field", 50,horizontalalignment.left);


LVWATTR.COLUMNS.ADD ("value", 50,horizontalalignment.center);





}





//








private void Tvfeat_nodemouseclick (object sender, System.Windows.Forms.TreeNodeMouseClickEventArgs e)


{


String ID;


ListViewItem Item;





if (e.node.parent = = null) {return;}


LvwAttr.Items.Clear ();


ID = E.node.text;


Mrs. MoveFirst ();


while (Mrs. EOF!= True)


{


if (ID = = Mrs. Fields.item ("Featureid"). valueasstring)


{


for (short fld = 1; fld < Mrs. Tabledesc.fieldcount; fld++)


{


Item = LvwAttr.Items.Add (Mrs. Tabledesc.get_fieldname (FLD));


Item.SubItems.Add (Mrs. Fields.item (Item.text). valueasstring);


}


Lvwattr.refresh ();


Break


}


Mrs. MoveNext ();


}


}





public void Currecordset (Mapobjects2.recordset vnewvalue)


{


Mrs = Vnewvalue;


}


public void Inilvwattr (Mapobjects2.recordset rst)


{


TreeNode N=null;


ListViewItem Item;


String ID;





LvwAttr.Items.Clear ();


if (TvFeat.Nodes.Count >= 2)


{


int i = 0;


foreach (TreeNode tn in Tvfeat.nodes)


{


i=i+1;


if (i = = 2)


{


n = TN;


Break


}


}





if (N.text!= null)


{


Rst. MoveFirst ();


ID = rst. Fields.item ("Featureid"). valueasstring;


while (rst. EOF!= True)


{


if (ID = = N.text)


{


for (short fld = 1; fld < rst. Tabledesc.fieldcount; fld++)


{


Item = LvwAttr.Items.Add (rst. Tabledesc.get_fieldname (FLD));


ITEM.SUBITEMS.ADD (rst. Fields.item (Item.text). valueasstring);


}


Lvwattr.refresh ();


Break


}


}


}


}





}


Add the selected recordset to the tree control for display


public void Initvfeat (Mapobjects2.recordset mors_in, String lyrname_in)


{


TreeNode N;


String ID;


if (mors_in. EOF!= True)


{


Mors_in. MoveFirst ();


TvFeat.Nodes.Clear ();


n = tvFeat.Nodes.Add (lyrname_in);


N=n.parent;


while (mors_in. EOF!= True)


{


ID = mors_in. Fields.item ("Featureid"). valueasstring;


n= TvFeat.Nodes.Add (ID);


Mors_in. MoveNext ();


}


}


}








zuihou////////////////////////////////////////////////////////////////////////////


}


}





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Load Layer Functions





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Using System;


Using System.Collections.Generic;


Using System.Text;


Using System.Windows.Forms;





Namespace IRND_DPT


{


Class OpenFile


{


Function Description:


Extract the file name from the Public dialog box, and then call a different child module to handle the problem of adding layers to different files (support for opening multiple files)


public void Openshapefiles (OpenFileDialog comopenfile,axmapobjects2.axmap map)


{


Try


{


String Strshape, Strcov, Strcad, STRVPF, Strimage, strmilimage;








To set the filter to a file that can be supported


Strshape = "ESRI shapefiles (*.shp) |*.shp";


Strcov = "ESRI coverages (*.adf,*.tat,*.pat,*.rat) |aat.adf;pat.adf;nat.adf;txt.adf;*.tat;*.pat;*.rat";


Strcad = "AutoCAD File (*.DWG,*.DXF) |*.dwg;*.dxf";


Strimage = "All Image" (*.bmp,*.dib,*.tif,*.jpg,*.jff,*.bil,*.bip,*.bsq,*.gis,*.lan,*.rlc,*.sid,*.sun,*.rs,*.ras,*. Svf,*.img,*.gif) |*.bmp,*.dib,*.tif,*.jpg,*.jff,*.bil,*.bip,*.bsq,*.gis,*.lan,*.rlc,*.sid,*.sun,*.rs,*.ras,*. Svf,*.img,*.gif ";





Comopenfile. Checkfileexists = true;


Set Filter


Comopenfile. Filter = Strshape + "|" + Strcov + "|" + Strcad + "|" + strimage;


Comopenfile. Title = "Add layer";


Allow multiple files to be selected and allow long file names


Comopenfile. MultiSelect = true;


if (comopenfile. ShowDialog () = = DialogResult.OK)


{





foreach (String strFileName in Comopenfile. FileNames)


{


String spath = strfilename.substring (0, Strfilename.lastindexof ("\") + 1);


String sfile = Strfilename.substring (Strfilename.lastindexof ("\") + 1, Strfilename.length-strfilename.lastindexof (" \ ")-1);


String nametype = Sfile.substring (Sfile.lastindexof (".") + 1, Sfile.length-sfile.lastindexof (".")-1);


Open_file (spath, Sfile, nametype, map);


}


}


}


Catch


{


MessageBox.Show ("Layer add error!");


}


}


Function Description:


Test the file type and call a different child module at a single point. Dealing with different layer joins


private void Open_file (string path,string filename,string filetype,axmapobjects2.axmap mapobject)


{


string layername = filename. Substring (0, filename. LastIndexOf ("."));


switch (filetype)


{


Case "SHP":


Shpadd (Path, filename, MapObject, layername, true);


Break





}


}


Function Description:


Add a file in shape format


public void Shpadd (string databasepath, String Filename,axmapobjects2.axmap mapobject, String layername, bool Hide)


{


Mapobjects2.dataconnection dcon=new mapobjects2.dataconnection ();


Mapobjects2.geodataset gset=new Mapobjects2.geodataset ();


Mapobjects2.maplayer Newlayer = new Mapobjects2.maplayer ();


Long i=0;





Try


{


Dcon.database = DatabasePath;


if (Dcon.connect ())


{


Mapobjects2.geodataset gset = dcon.findgeodataset (filename);


if (Gset = null)


{





return;


}


Else


{


See if there is currently a duplicate layer name to make sure all the layer names are unique


if (Findmaplayername (mapobject,layername) ==true)


{


string tempstr = LayerName;


while (Findmaplayername (mapobject, TempStr + "-" + i) ==true)


{


i++;


}


LayerName = LayerName + "-" + i;


}


Newlayer.geodataset = Gset;





if (Hide)


{


Newlayer.visible = true;


}


Else


{


Newlayer.visible = false;


}


Use default colors and styles to set layers


Switch (newlayer.shapetype)


{


Case MapObjects2.ShapeTypeConstants.moShapeTypePoint:


newlayer.symbol.color=11513775;


newlayer.symbol.size=5;


Break


Case Mapobjects2.shapetypeconstants. Moshapetypeline:


NewLayer.Symbol.Color = 11513775;


NewLayer.Symbol.Size = 1;


Break


Case MapObjects2.ShapeTypeConstants.moShapeTypePolygon:


NewLayer.Symbol.SymbolType = 0;


NewLayer.Symbol.Style = 8;


NewLayer.Symbol.Color = 12566463;


NewLayer.Symbol.Outline = true;


NewLayer.Symbol.OutlineColor = (int) MapObjects2.ColorConstants.moBlack;


Break


}


MapObject. Layers.add (Newlayer);


Newlayer.name = LayerName;


Newlayer.tag=databasepath + filename;





}





}


}


Catch


{


MessageBox ("Load layer Error!");


}


}


Function Description:


Find a layer in a map axmapobjects2.axmap mapobject,string layername


public bool Findmaplayername (Axmapobjects2.axmap mapobject, String layername)


{





for (int i=0;i<mapobject. Layers.count; i++)


{


if (MapObject. Layers.item (i). ToString () ==layername)


{


return true;





}


}


return false;





}


}


}