C#+MO实现一个道路编辑软件（刚开始）
程序员文章站
2023-11-09 12:54:46
//********************************************************** //******主窗口程序 //*********...
//**********************************************************
//******主窗口程序
//********************************************************
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();
}
//添加图层
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);
}
//删除图层
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);
}
//放大
private void tlb_zoomin_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.mozoomin;
}
//缩小
private void tlb_zoomout_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.mozoomout;
}
//漫游
private void tlb_pan_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.mopan;
}
//全图
private void tbl_full_click(object sender, eventargs e)
{
axmap1.extent = axmap1.fullextent;
axmap1.mousepointer = mapobjects2.mousepointerconstants.moarrow;
}
//逐渐放大
private void tbl_smallin_click(object sender, eventargs e)
{
mapobjects2.rectangle r = axmap1.extent;
r.scalerectangle(0.9);
axmap1.extent = r;
}
//逐渐缩小
private void tbl_smallout_click(object sender, eventargs e)
{
mapobjects2.rectangle r = axmap1.extent;
r.scalerectangle(1.1);
axmap1.extent = r;
}
//选择查询
private void tbl_identify_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.moidentify;
}
//属性浏览
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);
}
}
//地图响应事件
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)
{
//放大
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;
}
//缩小
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;
}
//漫游
case mapobjects2.mousepointerconstants.mopan:
{
axmap1.pan();
break;
}
//选择查询
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;
}
}
}
////////
///////////////////////////////////////////////////////////////////////////////////////////////
}
}
//*************************************************
//********属性查询
//************************************************
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("字段",50,horizontalalignment.left );
lvwattr.columns.add ("值",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;
}
}
}
}
}
//将选择的记录集加入到树型控件中进行显示
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////////////////////////////////////////////////////////////////////////////
}
}
//*************************************************************
//************加载图层函数
//*************************************************************
using system;
using system.collections.generic;
using system.text;
using system.windows.forms;
namespace irnd_dpt
{
class openfile
{
//功能说明：
// 从公共对话框中提取文件名，然后调用不同的子模块处理不同的文件加入图层的问题（支持打开多个文件）
public void openshapefiles(openfiledialog comopenfile,axmapobjects2.axmap map)
{
try
{
string strshape, strcov, strcad, strvpf, strimage, strmilimage;
//将过滤器设置为可支持的文件
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;
//设置过滤
comopenfile.filter = strshape + "|" + strcov + "|" + strcad + "|" + strimage ;
comopenfile.title = "添加图层";
//允许选择多个文件，并允许长文件名
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("图层添加有错!");
}
}
//功能说明:
// 测试文件类型,一便调用不同的子模块.处理不同图层加入的问题
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;
}
}
//功能说明：
//添加shape格式的文件
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
{
//查看当前是否有重复的图层名,以确保所有的图层名都是唯一的
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;
}
//使用默认颜色和样式设置图层
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("加载图层出错!");
}
}
//功能说明:
// 查找map中的图层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 ;
}
}
}
//******主窗口程序
//********************************************************
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();
}
//添加图层
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);
}
//删除图层
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);
}
//放大
private void tlb_zoomin_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.mozoomin;
}
//缩小
private void tlb_zoomout_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.mozoomout;
}
//漫游
private void tlb_pan_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.mopan;
}
//全图
private void tbl_full_click(object sender, eventargs e)
{
axmap1.extent = axmap1.fullextent;
axmap1.mousepointer = mapobjects2.mousepointerconstants.moarrow;
}
//逐渐放大
private void tbl_smallin_click(object sender, eventargs e)
{
mapobjects2.rectangle r = axmap1.extent;
r.scalerectangle(0.9);
axmap1.extent = r;
}
//逐渐缩小
private void tbl_smallout_click(object sender, eventargs e)
{
mapobjects2.rectangle r = axmap1.extent;
r.scalerectangle(1.1);
axmap1.extent = r;
}
//选择查询
private void tbl_identify_click(object sender, eventargs e)
{
axmap1.mousepointer = mapobjects2.mousepointerconstants.moidentify;
}
//属性浏览
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);
}
}
//地图响应事件
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)
{
//放大
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;
}
//缩小
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;
}
//漫游
case mapobjects2.mousepointerconstants.mopan:
{
axmap1.pan();
break;
}
//选择查询
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;
}
}
}
////////
///////////////////////////////////////////////////////////////////////////////////////////////
}
}
//*************************************************
//********属性查询
//************************************************
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("字段",50,horizontalalignment.left );
lvwattr.columns.add ("值",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;
}
}
}
}
}
//将选择的记录集加入到树型控件中进行显示
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////////////////////////////////////////////////////////////////////////////
}
}
//*************************************************************
//************加载图层函数
//*************************************************************
using system;
using system.collections.generic;
using system.text;
using system.windows.forms;
namespace irnd_dpt
{
class openfile
{
//功能说明：
// 从公共对话框中提取文件名，然后调用不同的子模块处理不同的文件加入图层的问题（支持打开多个文件）
public void openshapefiles(openfiledialog comopenfile,axmapobjects2.axmap map)
{
try
{
string strshape, strcov, strcad, strvpf, strimage, strmilimage;
//将过滤器设置为可支持的文件
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;
//设置过滤
comopenfile.filter = strshape + "|" + strcov + "|" + strcad + "|" + strimage ;
comopenfile.title = "添加图层";
//允许选择多个文件，并允许长文件名
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("图层添加有错!");
}
}
//功能说明:
// 测试文件类型,一便调用不同的子模块.处理不同图层加入的问题
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;
}
}
//功能说明：
//添加shape格式的文件
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
{
//查看当前是否有重复的图层名,以确保所有的图层名都是唯一的
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;
}
//使用默认颜色和样式设置图层
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("加载图层出错!");
}
}
//功能说明:
// 查找map中的图层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 ;
}
}
}