/// <summary>
/// 应用所选的颜色方案
/// </summary>
private void ApplyColorScheme2Categories()
{
if (_shapefile.Categories.Count > 0)
{
MapWinGIS.ColorScheme scheme = null;
if (icbCategories.SelectedIndex >= 0)
{
ColorBlend blend = (ColorBlend)icbCategories.ColorSchemes.List[icbCategories.SelectedIndex];
scheme = ColorSchemes.ColorBlend2ColorScheme(blend);
// saving the settings
//MWLite.Symbology.Layer layer = Globals.Legend.Layers.ItemByHandle(_layerHandle);
//_settings.CategoriesColorScheme = blend;
}
else
{
return;
}
if (chkRandomColors.Checked)
{
_shapefile.Categories.ApplyColorScheme(MapWinGIS.tkColorSchemeType.ctSchemeRandom, scheme);
}
else
{
_shapefile.Categories.ApplyColorScheme(MapWinGIS.tkColorSchemeType.ctSchemeGraduated, scheme);
}
MapWinGIS.ShapefileCategories categories = _shapefile.Categories;
//绘制catagorise选项
if (chkSetGradient.Checked)
{
for (int i = 0; i < categories.Count; i++)
{
ShapeDrawingOptions options = categories.get_Item(i).DrawingOptions;
options.SetGradientFill(options.FillColor, 75);
options.FillType = tkFillType.ftGradient;
}
}
else
{
for (int i = 0; i < categories.Count; i++)
{
ShapeDrawingOptions options = categories.get_Item(i).DrawingOptions;
options.FillColor2 = options.FillColor;
options.FillType = tkFillType.ftStandard;
}
}
}
}
public void SetGradient(Color color, byte range)
{
_style.SetGradientFill(ColorHelper.ColorToUInt(color), range);
}
/// <summary>
/// Generates shapefile categories according to specified options
/// </summary>
private void btnOk_Click(object sender, EventArgs e)
{
if (cboField.SelectedIndex < 0)
{
Globals.MessageBoxInformation("No field for generation was selected.");
this.DialogResult = DialogResult.None;
return;
}
int count;
if (!Int32.TryParse(cboCategoriesCount.Text, out count))
{
Globals.MessageBoxError("Number of categories isn't a valid interger.");
return;
}
MapWinGIS.ShapefileCategories categories = _shapefile.Categories;
int index = ((ComboItem)cboField.SelectedItem).RealIndex;
categories.Generate(index, (MapWinGIS.tkClassificationType)cboClassificationType.SelectedIndex, count);
categories.Caption = "Categories: " + _shapefile.get_Field(index).Name;
if (chkUseVariableSize.Checked)
{
if (_shapefile.ShapefileType == ShpfileType.SHP_POINT || _shapefile.ShapefileType == ShpfileType.SHP_MULTIPOINT)
{
double step = (double)(udMaxSize.Value - udMinSize.Value) / ((double)categories.Count - 1);
for (int i = 0; i < categories.Count; i++)
{
categories.get_Item(i).DrawingOptions.PointSize = (int)udMinSize.Value + Convert.ToInt32(i * step);
}
}
else if (_shapefile.ShapefileType == ShpfileType.SHP_POLYLINE)
{
double step = (double)(udMaxSize.Value + udMinSize.Value) / (double)categories.Count;
for (int i = 0; i < categories.Count; i++)
{
categories.get_Item(i).DrawingOptions.LineWidth = (int)udMinSize.Value + Convert.ToInt32(i * step);
}
}
}
MapWinGIS.ColorScheme scheme = null;
if (icbColorScheme.SelectedIndex >= 0)
{
ColorBlend blend = (ColorBlend)icbColorScheme.ColorSchemes.List[icbColorScheme.SelectedIndex];
scheme = ColorSchemes.ColorBlend2ColorScheme(blend);
}
tkColorSchemeType type = chkRandomColors.Checked ? tkColorSchemeType.ctSchemeRandom : tkColorSchemeType.ctSchemeGraduated;
_shapefile.Categories.ApplyColorScheme(type, scheme);
if (chkSetGradient.Checked)
{
for (int i = 0; i < categories.Count; i++)
{
ShapeDrawingOptions options = categories.get_Item(i).DrawingOptions;
options.SetGradientFill(options.FillColor, 75);
options.FillType = tkFillType.ftGradient;
}
}
_shapefile.Categories.ApplyExpressions();
SaveSettings();
}