/// <summary>
/// Applies color scheme to the visualization categories.
/// </summary>
/// <param name="Type">The method of interpolation.</param>
/// <param name="ColorScheme">The color scheme to take colors from.</param>
/// <param name="ShapeElement">The element of the shape symbology to apply colors to.</param>
/// <param name="CategoryStartIndex">The index of the first category to apply colors to.</param>
/// <param name="CategoryEndIndex">The index of the last category to apply colors to.</param>
public void ApplyColorScheme3(tkColorSchemeType Type, ColorScheme ColorScheme, tkShapeElements ShapeElement, int CategoryStartIndex, int CategoryEndIndex)
{
throw new NotImplementedException();
}
/// <summary>
/// Applies color scheme to the visualization categories.
/// </summary>
/// <param name="Type">The method of interpolation.</param>
/// <param name="ColorScheme">Color scheme to take colors from.</param>
public void ApplyColorScheme(tkColorSchemeType Type, ColorScheme ColorScheme)
{
throw new NotImplementedException();
}
/// <summary>
/// Applies color scheme to the visualization categories.
/// </summary>
/// <param name="Type">The method of interpolation.</param>
/// <param name="ColorScheme">The color scheme to take colors from.</param>
/// <param name="ShapeElement">The element of the shape symbology to apply colors to.</param>
public void ApplyColorScheme2(tkColorSchemeType Type, ColorScheme ColorScheme, tkShapeElements ShapeElement)
{
throw new NotImplementedException();
}
/// <summary>
/// Generation of labels categories
/// </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 = 0;
if (!Int32.TryParse(cboCategoriesCount.Text, out count))
{
Globals.MessageBoxInformation("The entered categories count isn't a number");
this.DialogResult = DialogResult.None;
return;
}
string fieldName = cboField.SelectedItem.ToString();
int index = -1;
for (int i = 0; i < m_shapefile.NumFields; i++)
{
if (m_shapefile.get_Field(i).Name == fieldName)
{
index = i;
break;
}
}
if (index == -1)
{
return;
}
m_shapefile.Labels.GenerateCategories(index, (MapWinGIS.tkClassificationType)cboClassificationType.SelectedIndex, count);
if (chkUseVariableSize.Checked)
{
int numCategories = m_shapefile.Labels.NumCategories;
double step = (double)(udMaxSize.Value - udMinSize.Value) / ((double)numCategories - 1);
for (int i = 0; i < numCategories; i++)
{
m_shapefile.Labels.get_Category(i).FontSize = (int)udMinSize.Value + Convert.ToInt32(i * step);
}
}
if (chkGraduatedFrame.Checked)
{
ColorBlend blend = (ColorBlend)icbFrame.ColorSchemes.List[icbFrame.SelectedIndex];
MapWinGIS.ColorScheme scheme = ColorSchemes.ColorBlend2ColorScheme(blend);
tkColorSchemeType type = chkRandomColors.Checked ? tkColorSchemeType.ctSchemeRandom : tkColorSchemeType.ctSchemeGraduated;
m_shapefile.Labels.ApplyColorScheme2(type, scheme, tkLabelElements.leFrameBackground);
}
for (int i = 0; i < m_shapefile.Labels.NumCategories; i++)
{
m_shapefile.Labels.get_Category(i).FrameVisible = chkGraduatedFrame.Checked;
}
m_shapefile.Labels.ApplyCategories();
SaveSettings();
}
/// <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();
}
/// <summary>
/// Generates visualization categories for OGR layer.
/// </summary>
/// <param name="Fieldname">%Field name to use as a base for classification.</param>
/// <param name="ClassificationType">Type of classification.</param>
/// <param name="numClasses">Number of classes (is not used with unique values classification type).</param>
/// <param name="colorStart">Starting color for the color scheme.</param>
/// <param name="colorEnd">End color for the color scheme.</param>
/// <param name="schemeType">Type of color scheme.</param>
/// <returns>True on success.</returns>
/// <remarks> The whole set of features will be used during classification, not only those currently loaded into memory.
/// Therefore the method has definite advantage over calling OgrLayer.GetBuffer.Categories.Generate
/// directly for large layers.\n\n
///
/// Categories will be added to underlying shapefile (OgrLayer.GetBuffer). This method
/// will trigger the population of this shapefile if it's not yet in memory. \n
///
/// The following code opens "buildings" layer, generates categories based on "population"
/// field and then saves them as a "new_style" to the datasource.\n
///
/// \code
/// var layer = new OgrLayer();
/// if (!layer.OpenFromDatabase(CONNECTION_STRING, "buildings"))
/// {
/// Debug.WriteLine("Failed to open the layer: " + layer.GdalLastErrorMsg);
/// }
/// else
/// {
/// layer.LabelExpression = "[Name]";
/// layer.LabelPosition = tkLabelPositioning.lpCenter;
/// layer.GlobalCallback = this;
///
/// if (!layer.GenerateCategories("population", tkClassificationType.ctEqualIntervals,
/// 10, tkMapColor.Blue, tkMapColor.Yellow, tkColorSchemeType.ctSchemeGraduated))
/// {
/// Debug.WriteLine("Failed to generated categories: " + layer.get_ErrorMsg(layer.LastErrorCode));
/// }
/// else
/// {
/// var sf = layer.GetBuffer();
/// Debug.WriteLine("Number of generated categories: " + sf.Categories.Count);
///
/// // save it as a new style
/// if (!layer.SaveStyle("new_style"))
/// {
/// Debug.WriteLine("Failed to save style: " + layer.GdalLastErrorMsg);
/// }
/// else
/// {
/// Debug.WriteLine("The new style has been saved.");
/// }
/// }
/// layer.Close();
/// }
/// \endcode
/// </remarks>
public bool GenerateCategories(string Fieldname, tkClassificationType ClassificationType, int numClasses,
tkMapColor colorStart, tkMapColor colorEnd, tkColorSchemeType schemeType)
{
throw new NotImplementedException();
}
/// <summary>
/// Applies specified colors to the exiting breaks of GridColorScheme.
/// </summary>
/// <param name="schemeType">Type of the scheme.</param>
/// <param name="scheme">Colors to apply.</param>
/// <param name="gradientWithinCategories">If <c>true</c> gradient within each category will be set.</param>
/// <returns>True on suceess.</returns>
/// \new494 Added in version 4.9.4
public bool ApplyColors(tkColorSchemeType schemeType, ColorScheme scheme, bool gradientWithinCategories)
{
throw new NotImplementedException();
}
