Create Thematic Map

Thematic maps are maps that focus on one or more natural or socio-economic phenomena in the mapping area to meet specific needs. In SuperMap, thematic map is essentially the Symbolic Display of map layers, that is, using various graphics rendering styles (size, color, line type, filling, etc.) To graphically represent certain characteristics of elements. The Vector Data thematic map visualizes the data based on the Attributes in the attribute table.

In SuperMap, you can create Unique-values maps, Graudated Colors Map, Thematic Label Map, Statistical Thematic Map, Graduated Symbols Map, Dot Density Map, Custom Thematic Map, etc. This time, we need to make Unique-values Map and Thematic Label Map for the city boundary layer, and make Thematic Label Map for tourist attractions.

Operation steps

Create a Uniform Style thematic map based on the city boundary, Province _ R, national road, provincial road, and highway layers:

  1. Select the "city boundary _ region @ travel" layer in the "Layer Manager" ", and select" Create Thematic Map.. "" In the Context Menu. Select the Thematic Label Map "on the left side of the pop-up Create Thematic Map" dialog box, and select Uniform Style "in the Style Templates list of the thematic map on the right side. Click OK to create a Uniform Style Thematic Label Map based on the city boundary layer.
  2. The created thematic map will Add to Current Map Window automatically, and the "Thematic Map" window will pop up at the same time. The window displays the default setting information of the current Uniform Label thematic map. On this basis, set the style of the thematic map and optimize the display style of the thematic map.
  3. In the Properties interface of the Thematic Map panel, click the Drop-down Button on the right side of the Label expression ", select the City Boundary _ region. NAME" field, and use this field as the thematic variable to label the objects in the layer again.
  4. Set the Background shape "to Default, that is, the Text in the Thematic Label Map does not have any Background shape decoration.
  5. In the Style interface of the Thematic Map panel, set the Font to Microsoft YaHei, the font size to 9, and the Text Color RGB values to 127, 127, and 127.
  6. Create Uniform Label thematic maps for other layers according to the above steps, and set the corresponding Label expression and Label Style. The preview effect of the Thematic Label Map after creation is shown in the following figure:

Create a Label Matrix Thematic Map based on the tourist site layer

The Label Matrix Thematic Map can express the information of each scenic spot through pictures and texts. When making a picture Thematic Label Map, there should be a field in the Dataset Properties table to store the relative path information of the picture. Before creating a Thematic Label Map, you need to modify the Attributes of the Point Dataset. Note: In this example, for the beauty of Display Effects, the Object Extraction of tourist attractions with pictures is saved as a Point Dataset, and the Label Matrix Thematic Map is made for this Point Dataset.

  1. In Workspace Manager, right click the "Tourist Attractions" Dataset node and select the "Properties" item to open the Dataset Properties dialog box.
    2. Click the Property Table node
  2. in the property dialog box to view the field structure of the Dataset Properties table. Click Add to add a new Property Field. In the last row of the table, set the Field and alias of the new Field as Path. Type: text type, length: 50, as shown in the following figure. Click the Apply button to save the changes to the Table Structure.
    3. Enter the relative path and image name of the corresponding image of the tourist attraction object in the attribute cell of the Path field in the attribute table of the
  3. tourist attraction. The relative path refers to the relative path between the Datasource where the Dataset is located and the image.
    4. Create a Thematic Label Map of default Matrix Style
  4. based on the tourist attraction layer, perform Style Settings in the thematic map panel, and optimize the thematic map Display Effects.
  5. In the Thematic Map panel, click a blank space in the subitem Thematic Label Map list, and change the number of columns in the Label Matrix to 1 and the number of rows to 2. At the same time, set the "Background shape" "as the" Default "style in the" Properties "interface of the thematic map panel, that is, without any background shape decoration; check the" No Overlap "" check box and set it as the Avoid at Four Directions.
  6. Select the first row of Label Matrix cells, click the Drop-down Button on the right, select the label type as "Picture Label", and select the "Path" field at "Picture Path". And check the Keep Original Size "checkbox.
      Set "Label expression" as the "Scene name" field
    • in the "Properties" interface, and set "Background shape" as the "Default" style.
      • Set "Font" as "Microsoft YaHei" "in
    • the" Style "interface, the font size as 10, the Text Color as black, check the" Outline "check box, and set the Background RGB as 0, 0, 0.
    7. If the label text in the
  7. Thematic Label Map is covered, select the label point, line or surface object, click the Move Label "item in the Label group of the Thematic Map tab, and click the left mouse button in the target position to move the label of the object to the target position.