How to style polygonal objects? GISCARTA provides several types of stylizations, fills and hatches. Stylization by unique values, by ranges, etc. Read more in this post.
There are several ways to style polygon layer by choosing from one of the following options:
- Single symbol
- Symbol by one attribute
Single symbol
This style is applicable to all spatial elements and refers to a single display for all objects in the layer. It is possible to customize the fill, border and hatching of features.
This style is applicable to all spatial elements and refers to a single display for all objects in the layer. It is possible to customize the fill, border and hatching of features.
Symbol by one attribute
This style is applicable to all spatial elements and refers to a display set by one of the layer’s attributes. To do so, select an attribute from the drop-down list and then set up the styling for the values of this attribute.
For text attributes, it is possible to automatically load all values by selecting the "Unique values" method and clicking the "Set" button.
For numeric attributes, you can set intervals using the following methods:
Now you can set the symbol style for each of the set values separately or apply the general settings to all values by clicking on the "Gears" icon next to the word Symbol. General settings include selecting a palette or fill, and setting the border and hatching of the symbol.
This style is applicable to all spatial elements and refers to a display set by one of the layer’s attributes. To do so, select an attribute from the drop-down list and then set up the styling for the values of this attribute.
For text attributes, it is possible to automatically load all values by selecting the "Unique values" method and clicking the "Set" button.
For numeric attributes, you can set intervals using the following methods:
- Equal intervals is a method that will divide the range of values into equal-size classes. For example, three classes for the range of values from 0 to 300 will be created with the following ranges: 0 — 100, 101 — 200, 201 — 300.
- Equal number (quantile) is a method that will split the range of values into classes equal to the number of objects within each class.
- Natural Breaks (Jenks ) is a method that will split the range of values into classes, the differences between values within which will be maximal.
Now you can set the symbol style for each of the set values separately or apply the general settings to all values by clicking on the "Gears" icon next to the word Symbol. General settings include selecting a palette or fill, and setting the border and hatching of the symbol.
Stylization of polygon objects is necessary in almost all areas of activity, such as:
- Urban planning
- Environmental studies
- Geomarketing
- Retail
- Tourism
- Journalism
- Student studies