====== Semi Automated 3D Measurement Functions ======

This page describes all semi-automated / auto-complete measure functions. For basic measurements, see [[194:technology:3d_mapping:measurements|]]. \\
It is recommended to read first [[194:desktop:map:3d_measurements|]].

Auto-complete measurements are available in Feature Extraction Standard and Pro, see [[194:products:product_comparison|]].

===== Concepts =====

Semi-automated measurement functions or Detectors require direct file access point cloud availability.\\
Detectors are designed to extract features based on their known properties. Understanding of how certain object will be represented in the point cloud allows to extract it with just a few clicks. The characteristic used can be: geometry of the object, reflectivity, color or any combination of the above.\\

**Point Cloud Resource ** \\
Detectors analyze single point cloud dataset (opened as a simple resource or as part of a compound resource: MM and UAS Runs\Oblique Project) and return measurement which can be saved into a vector dataset or theme of corresponding type.\\
Point Cloud resources must be optimized into an Orbit Point Cloud. If needed merge and optimize multiple Point Cloud resources into a single resource, see [[194:technology:supported_formats:pointcloud:opc|]] and [[194:desktop:tools:optimize_data|]].

===== Functions =====

==== Line ====

{{:170:desktop:mmpano_measure_ridge.png?nolink|}} **Ridge with 1 point** \\
Auto completed ridge measurement. \\
How to measure : (1) any point on ridge. Or combine with Object Snapping to (2) specify direction point to auto complete ridge. \\
Results : xyz, xy and z length. \\

{{:mobile_mapping:desktop:core:use:mmpano_measure_ridge_multi.png?nolink|}} **Multiple ridges**\\
How to measure : \\
Results : \\

{{:170:desktop:mmpano_measure_rails.png?nolink|}} **Rail with 3 points** \\
Auto completed rail measurement. \\
How to measure : (1) any point on rail 1, (2) 2nd point on rail 1, (3) any point on rail 2. \\
Results : xyz, xy and z length. \\

{{:170:desktop:mmpano_measure_road_full_line.png?nolink|}} ** Road mark with 2 points ** \\
Auto completed solid road markings measurement. \\
Conditions : Point cloud must include values for intensity. \\
How to measure : (1) start point, (2) direction point to auto complete road marking. \\
Results : xyz, xy and z length. \\

{{:170:desktop:mmpano_measure_road_dash_line.png?nolink|}} **Road mark with 3 points** \\
Auto completed dashed road markings measurement. \\
Conditions : Point cloud must include values for intensity.  \\
How to measure : (1) start point 1st dash, (2) end point 1st dash, (3) end point 1st gap (equals start point 2nd dash). \\
Results : xyz, xy and z length. \\

{{mobile_mapping:desktop:core:use:mmpano_measure_fence_1click.png?nolink|}} **Fence with 1 point** \\
How to measure : \\
Results : \\

{{mobile_mapping:desktop:core:use:mmpano_measure_soil_separation_1click.png?nolink|}} **Separation line with 1 point**\\
Conditions : \\
How to measure : \\
Results : \\

{{mobile_mapping:desktop:core:use:mmpano_measure_guard_rail_1click.png?nolink|}} **Guardrail with 1 point**\\
Conditions : \\
How to measure : \\
Results : \\

==== Catenary ====

{{:170:desktop:mmpano_measure_distance_catenary_1click.png?nolink|}} **Catenary Curve with 1 point** \\
Catenary curve measurement. \\
How to measure : (1) any point on catenary curve. Combine with <Ctrl> to measure all parallel wires between two poles. \\
Results : Distance over curve, clearance and span. 

{{:170:desktop:mmpano_measure_distance_catenary_1click_height.png?nolink|}} **Catenary Curve to horizontal reference plane** \\
Catenary curve and lowest clearance measurement. \\
How to measure :  (1) ground reference point, (2) any point on catenary curve. \\
Results : Distance over curve, clearance and span, x,y,z. \\

==== Area ====

{{:mobile_mapping:desktop:core:use:mmpano_measure_cross_walk.png?nolink|}} **Crosswalk** \\
How to measure : \\
Results : \\