2D/3D tools and annotations

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2D/3D tools
Annotations

2D/3D tools

The 2D/3D tools allow the user to select, modify and create annotations in the 2D and 3D views. The available tools are:

  • select.png Select and Modify: It allows to pan the map/model, select and modify an element in the views, visualize its details in the Details panel.
  • distance.png Measure a distance or elevation: It allows to draw a (poly)line annotation and extract measurements. An elevation profile can be generated from a distance measurement. More information in: How to generate an elevation profile.
  • area.png Measure an area: It allows to draw a polygon annotation and extract measurements from it.
  • volume.png Measure a volume: It allows to draw a base surface upon which a volume annotation is created and volume measurements can be extracted.
  • marker.pngAdd a marker: It allows to add a point-like marker annotation and extract measurements from it.
  • inspect.png Inspect: It allows to add an inspection to the project. More information in: What is the Virtual Inspector?

annotations.png

 
Note: Annotations created in the 2D view affect the 3D view and vice versa. It means annotations are automatically synchronized from one view to the other.

The measurement unit displayed in the 2D/3D view, imperial or metric, is the one selected in the account settings. More information in Pix4Dcloud - FAQ. More information on annotations coordinate system in: Georeferencing of datasets, outputs and annotations.

Annotations

Lines, Polygons, Volumes, Markers and Inspections form the Annotations layer.

Multiple Annotations layers can be created in order to better organize the annotations into groups. To create an additional Annotations layer, click add.png next to Layers.

When clicking the Annotations layer, the details panel opens on the right.

 

  • Name
  • (optional) Description
  • (optional) Tags
  • Settings
    • Visible: set the layer as visible or not visible.
    • Opacity: adjust the opacity level from 0 to 100.
    • Number of annotations: it shows the number of annotations belonging to the layer.

Annotations can be exported and imported. More information in: How to export/import annotations.

Line

To measure a distance:

  1. Click distance.png.
  2. In the 2D/3D view, left-click on the map/model to draw points of the polyline. Right-click or left-click twice to draw the last node.

When clicking on a Line item in the Annotations layer or after drawing it, the details panel opens on the right.

 

  • Name
  • (optional) Description
  • (optional) Tags
  • Color: displayed color of the line.
  • Measurements
    • 2D length: length of the line projected on the 2D DSM.
    • 3D length: length of the 3D line.
    • Min. elevation: lowest elevation of the points forming the (poly)line.
    • Max. elevation: highest elevation of the points forming the (poly)line.
    • Elevation difference: difference between the highest and the lowest elevations.
    • Min. slope: minimum gradient value of the polyline.
    • Max. slope: maximum gradient value of the polyline.
    • Slope as percentage: display the above slope as percentage or in degrees.
  • Generate elevation profile: produce an elevation profile from the line. More information in: How to generate an elevation profile.

Polygon

To measure an area:

  1. Click area.png.
  2. In the 2D/3D view, left-click on the map/model to draw points of the polygon. Right-click or left-click twice to draw the last vertex of the polygon.

When clicking on a Polygon item in the Annotations layer, the details panel opens on the right.

 

  • Name
  • (optional) Description
  • (optional) Tags
  • Color: displayed color of the polygon.
  • Measurements
    • 2D area: area of the polygon projected on the 2D DSM.
    • 3D area: area of the 3D polygon.
    • 2D perimeter: perimeter of the polygon projected on the 2D DSM.
    • 3D perimeter: perimeter of the 3D polygon.
    • Min. elevation: lowest elevation of the vertices forming the polygon.
    • Max. elevation: highest elevation of the vertices forming the polygon.
    • Elevation difference: difference between the highest and the lowest elevations.

Volume

To measure a volume:

  1. Click volume.png.
  2. In the 2D/3D view, left-click on the map/model to draw the points of the base surface of the volume. Right-click or left-click twice to draw the last vertex of the surface. More information in How to calculate volumes on the Cloud.

When clicking on a Volume item in the Annotations layer, the details panel opens on the right.

 

  • Name
  • (optional) Description
  • (optional) Tags
  • Color: displayed color of the volume base surface.
  • Measurements
    • 2D area: area of the polygon projected on the 2D DSM.
    • 3D area: area of the 3D polygon.
    • 2D perimeter: perimeter of the polygon projected on the 2D DSM.
    • 3D perimeter: perimeter of the 3D polygon.
    • Min. elevation: lowest elevation of the vertices forming the polygon.
    • Max. elevation: highest elevation of the vertices forming the polygon.
    • Elevation difference: difference between the highest and the lowest elevations.
  • Volume

Marker

To add a marker:

  1. Click marker.png.
  2. In the 2D/3D view, left-click on the map/model to add the markers.

When clicking on a Marker item in the Annotations layer, the details panel opens on the right.

 

  • Name
  • (optional) Description
  • (optional) Tags
  • Color: displayed color of the marker.
  • Measurements
    • Coordinates (WGS84): latitude and longitude values in WGS84.
    • X: X coordinate in the projected coordinate system of the project.
    • Y: Y coordinate in the projected coordinate system of the project.
    • Z: Z coordinate in the projected coordinate system of the project.
    • Elevation: altitude of the point in the coordinate system of the project and in the measurement unit specified in the user's Account settings.
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