Now being updated for Qgis2threejs version 2.0.
When the Qgis2threejs exporter window opens first time, Layers panel is on the left side of the window and preview is on the right side.
In this plugin, the word “export settings” means all configuration settings for a 3D scene, which consist of world settings, camera settings, each layer settings and so on. You can configure them via Scene menu and Layers panel.
In the Layers panel, each layer item has a checkbox on its left. Check the checkbox to add the layer to current scene. To open layer properties dialog and configure settings for the layer, double-click on the layer item or click on Properties from context menu (right click menu).
Export settings are automatically saved to a
.qto3settings file under the same directory
as the project file if you are working with a project file. Later the export settings of
the project will be automatically loaded into the exporter.
If you don’t want to use preview, uncheck Preview checkbox in the lower right corner of the window. For example, you might want to uncheck it to avoid waiting for updating 3D objects in the scene for each export settings update,
World settings dialog controls some basic configuration settings for current scene.
Scene - World Settings... menu entry to open the dialog.
- Scale and Shift
Size in 3D world that corresponds to the map canvas width. The default value is 100.
Vertical exaggeration factor. This value affects terrain shape and z positions of all vector 3D objects. This also affects 3D object height of some object types with volume. Object types to be affected:Point : Cylinder, Cube, ConePolygon : Extruded
3D objects of the following types have volume, but their heights aren’t affected by this factor:Point : SphereLine : Pipe, Cone, Box
The default value is 1.0.
Vertical shift for all objects. If you want to export high altitude and narrow area, you should adjust the object positions to be displayed at the center of browser by changing this value. If you set the value to -1000, all objects are shifted down by 1000 in the unit of map CRS.
Select either sky-like gradient or a solid color for the background of scene. Default is Sky.
Display of coordinates
Latitude and longitude (WGS84)option is selected, coordinates of clicked position on a 3D object are displayed in longitude and latitude (WGS84). If Proj4js doesn’t support current map CRS, this option is disabled.
Select a DEM resolution from several levels. This resolution is used to resample the DEM, but is not for texture.
This option enlarges output DEM by placing DEM blocks around the main block of the map canvas extent. Size can be selected from odd numbers in the range of 3 to 9. If you select 3, total 9 (=3x3) blocks (a center block and 8 surrounding blocks) are output. Roughening can be selected from powers of 2 in the range of 1 to 64. If you select 2, grid point spacing of each surrounding block is doubled. It means that the number of grid points in the same area becomes 1/4.
Clip DEM with polygon layer
Clips the DEM with a polygon layer. If you have a polygon layer that represents the area that elevation data exist or represents drainage basins, you might want to use this option.
You can choose from map canvas image, layer image, a image file or a solid color.
Map canvas image
Render a texture image with the current map settings for each DEM block.
Render a texture image with the selected layer(s) for each DEM block.
Textures the main DEM block with existing image file such as PNG file and JPEG file. TIFF is not supported by some browser. See Image format support for details.
To select a color, press the button on the right side.
Increases the size of image applied to each DEM block. This option is enabled when either
Map canvas imageor
Layer imageis selected. You can select a ratio to map canvas size from 100, 200 and 400 (%). Image size in pixels follows the percent.
Sets opacity of the DEM. 100 is opaque, and 0 is transparent.
Transparent background (With map canvas image or layer image)
Makes background of the image to be rendered transparent.
Enable transparency (With image file)
Enables the image transparency.
Adds a shading effect to the DEM.
This option adds sides and bottom to each DEM block. The z position of bottom in the 3D world is fixed. You can adjust the height of sides by changing the value of vertical shift option in the World panel. If you want to change color, edit the output JS file directly.
This option adds frame to the DEM. If you want to change color, edit the output JS file directly.
Vector layers are grouped into three types: Point, Line and Polygon. Common settings for all types:
Specifies object altitude above zero-level or a DEM surface.
You can use a expression to specify altitude. The unit is that of the map CRS. When Z value or M value is selected, the evaluated value is added to it.
- Z value
This item can be selected when the layer geometries have z coordinates and the layer type is point or line.
- M value
This item can be selected when the layer geometries have m values and the layer type is point or line.
Altitude is distance above zero-level.
- Relative to DEM layer
Altitude is distance above a DEM surface.
Usually, there are options to set object color and transparency. Refer to the links below for each object type specific settings. The unit of value for object size is that of the map CRS.
Select the features to be output.
All features of the layer are exported.
Features that intersect with map canvas extent
Features on the map canvas are exported.
This option is available with Line/Polygon layer. If checked, geometries are clipped by the extent of map canvas.
Attribute and label
If the export attributes option is checked, attributes are exported with feature geometries. Attributes are displayed when you click an object on web browser.
If a field is selected in the label combobox, a label is displayed above each object and is connected to the object with a line. This combo box is not available when layer type is line.
Point layers in the project are listed as the child items. The following object types are available:
Sphere, Cylinder, Cone, Box, Disk
Line layers in the project are listed as the child items. The following object types are available:
Line, Pipe, Cone, Box, Profile
Select a template from available templates:
This template is a 3D viewer without any additional UI library.
This template has a dat-gui panel, which makes it possible to toggle layer visibility, adjust layer opacity and add a horizontal plane movable in the vertical direction.
Output directory and HTML Filename
Exporting starts when you press the Export button. When the exporting has been done and Open exported page in web browser option is checked, the exported page is opened in default web browser (or a browser specified in Exporter Settings).