SuperMap iDesktopX supports creating thematic maps for 2D point, line, and area vector datasets in video maps. Thematic maps can be created via the Thematic Map tab or by right-clicking the dataset in the Layer Manager and selecting the Thematic Map option. Video maps provide five thematic types: Unique Value Thematic Map, Graduated Color Thematic Map, Label Thematic Map, Statistical Thematic Map, and Custom Thematic Map. Users can choose appropriate thematic types based on needs.
Unique Value Thematic Map
Predefined templates in SuperMap iDesktopX video maps include Default, Administrative Boundaries, and Administrative Regions. Creating Unique Value Thematic Maps using thematic templates enables efficient batch mapping and template reuse. Blank thematic maps allow users to specify custom field expressions without pre-defined fields.
After creating a Unique Value Thematic Map, configure the following parameters in the thematic panel:
- Single Value Expression: Displays and sets the thematic variable (attribute field or mathematical expression) for current thematic map.
- Reset Unique Value after Expression Changed: When checked, automatically resets unique values and refreshes display upon expression modification.
- Color: Drop-down combo box for selecting color schemes. Click the modify button to customize colors.
- Toolbar: Provides visibility, style, add, delete, and item property settings:
- Visible: Toggles visibility of selected thematic value items.
- Style: Configures symbol styles for selected items. Different settings apply to point/line/area datasets - see Point Symbol Style Settings, Line Symbol Style Settings, Fill Symbol Style Settings.
- Add: Manages thematic values through dedicated interface.
- Delete: Removes selected thematic value items.
- Item Property Settings: Configures extended properties and texture maps. See Thematic Subitem Property Settings.
Graduated Color Thematic Map
This map type divides attribute values into continuous ranges using different colors/symbols to show spatial distributions. Effective for visualizing quantitative data like GDP, population density, or temperature. Supports DEM and GRID layers.
Templates include Default, Population Distribution, Construction Land, and Temperature Distribution. Template-based creation enables batch mapping efficiency.
Configure parameters in the thematic panel after creation. See Modify Graduated Color Thematic Map for details.
Label Thematic Map
Annotates map features using attribute fields. Common applications include placenames, road labels, and elevation values. Supports text/numeric fields.
Templates include Default, World Capitals, and Provincial Names. Template-based labeling ensures consistency.
Properties Tab
- Label Expression: Sets labeling field(s) or expressions.
- Billboard Mode: Three options - Screen Align, Clamp to Ground, Free Rotation.
- Custom Style: Adjusts rotation parameters based on selected mode.
Style Tab
- Text Opacity: 0-100 scale (0=opaque).
- Scale Factor: Default=1 (no scaling).
- Font: Select font family.
- Alignment: Eight positioning options (e.g. Top-Center, Bottom-Left).
- Font Size/Height: Controls text dimensions.
- Offset Mode: Proportional/Pixel offset settings.
- Horizontal/Vertical Offset: Range varies by mode.
- Text/Outline Color: Color pickers for text styling.
- Font Effects: Bold, Italic, Transparent Background, Outline, Strikethrough, Underline, Fixed Size.
Statistical Thematic Map
Visualizes statistical relationships between multiple numeric variables. Enables comparative analysis of phenomena like vegetation distribution or population growth.
Supports multi-variable analysis with templates including GDP Comparison, Urban-Rural Population, and Primary Industry Growth.
Properties Tab
- Color: Manages statistical chart color schemes.
- Diagram Types: Stacked Bar, Bar, Pie charts.
- Resampling Methods: Constant, Logarithmic, Square Root (negative values exclude log/sqrt).
- Toolbar: Manages statistical fields with delete/add/reorder buttons.
- Information Table: Configures expressions, styles, and titles for statistical values.
Advanced Tab
- Visible Size Range: Sets min/max display sizes.
- Chart Labels: Toggles value labels with format/style options.
- Bar Styles: Adjusts column width (bar charts only).
- Pie Styles: Sets starting angle (default 0°).
Custom Thematic Map
Creates thematic maps using custom fields and style tables. Configure fill/line styles for area/line datasets, or symbol properties for point data. See 3D Custom Thematic Map Settings.
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