//end of operation function
private void miGetRenderInfo_Click(object sender, EventArgs e)
{
DataOperator dataOperator = new DataOperator(axMapControl1.Map);
ILayer layer = axMapControl1.Map.get_Layer(0);
MessageBox.Show(MapComposer.GetRendererTypeByLayer(layer));
}
/* Usage: Simply render the layer - main function
* Author: Ding
* Time: 2019/03/22
*/
private void mainRenderSimply(String LayerName)
{
DataOperator dataOperator = new DataOperator(axMapControl1.Map);
if (LayerName == "")
{
MessageBox.Show("ERROR: 没有可显示的图层!");
return;
}
ILayer layer = dataOperator.GetLayerByName(LayerName);
//Set the color of symbol from ColorDialog
// -- I don't want to rewrite the colordialog class, so let it show in the middle of window
ColorDialog colorDialog1 = new ColorDialog();
Color selectedColor = Color.FromArgb(0, 255, 0, 0); //selectedColor is the color selected for the symbol, default color is red
if (colorDialog1.ShowDialog() == DialogResult.OK)
{
selectedColor = colorDialog1.Color;
}
//set color
if (selectedColor.A == 0)
{
return;
}
IRgbColor rgbColor = new RgbColorClass();
rgbColor.Red = selectedColor.R; rgbColor.Green = selectedColor.G; rgbColor.Blue = selectedColor.B;
ISymbol symbol = MapComposer.GetSymbolFromLayer(layer);
IColor color = rgbColor as IColor;
bool bRes = MapComposer.RenderSimply(layer, color);
if (bRes)
{
axTOCControl1.ActiveView.ContentsChanged();
axMapControl1.ActiveView.Refresh();
//miRenderSimply.Enabled = false;
}
else
{
MessageBox.Show("简单渲染图层失败！");
}
}