Edit features

MapStudio provides the ability to edit features on layers derived from SuperMap iServer REST data services and structured data, which contains adding, copying, deleting features, and modifying the spatial and attribute information of features.

It should be noted that not all of the above types of layers can be edited. Whether a layer is editable is determined by factors such as whether the data itself allows editing, and whether the current user has editing permission. Details are as follows:

• Whether the layers derived from SuperMap iServer REST data service allow editing is determined by whether the data service itself allows editing.
• If the data is shared by other users, the current user cannot edit it.

Here we introduce the operations of adding, editing and deleting elements in the layer. You can also modify the attributes of features in the attribute table. Select the data in the data list and click 'Edit' to the right of the 'Add Data' button, or select the layer in the layers list and click icon > 'Edit' to start editing features.

Add features

When no feature is selected, there are buttons of adding new features and corresponding operation tips in the right panel. Click the 'Add feature' button to add new features to the current layer.

1. For each type of layer, click on the map to add features of corresponding type. When adding line and polygon features, right-click after adding nodes in turn on the map to complete the addition. You can add polyline, Bezier curve in line layers, and add polygon, rectangle, circle in polygon layers.
2. The attribute value of the adding feature is empty by default. Click the 'Edit' button in the right panel to add the attribute value;

It can add features by copying them. Select a feature, click  to copy a new feature with the same shape and attribute information. The new feature will be automatically selected, and you can modify its spatial on the map and attribute information in the right panel.

Edit features

Edit spatial information

Select and drag to change the spatial position of the feature, or directly input a new coordinate value. If you need to modify the nodes of the line and polygon features, click the target node after selecting the elements, and then drag the node. If you need to change the spatial position of many features in batch, click Ctrl + multiple features and then drag over any selected item to change the spatial position of features.

You can change the spatial position and size of the feature by rotation and scaling operations. Select the feature and click 'rotate scale' in the right panel, hold down the rotation button and drag it in the clockwise or counterclockwise direction to adjust the rotation angle, hold down the rectangular node around the feature and drag it in or out to resize the feature.

You can click  or icon on the right panel to redo or undo the last feature editing operations.

Edit attribute information

Select a feature, click the  button of the feature in the right panel to modify the attribute information in the input box.

Combine and uncombine

Features support combination and uncombination operations. Click Ctrl + multiple features and then click 'Combine' in the right panel to merge them into a multi-component element. You can also select a multi-component element and click 'uncombine' in the right panel to split it into multiple features.

Delete features

Select the feature, click  in the right panel to delete it, and click  to restore the deleted feature. If you need to delete features in batch, you can click Ctrl + multiple features at the same time, and then click   at the top right panel to remove all selected features.

Save changes

Click 'Save changes' on the right panel to save all your operations such as adding, modifying and deleting features. Click "Cancel changes" to restore the content saved last time.