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ardiadminguide:coordinate_mapping [2019/08/06 03:59]
optrix created 		ardiadminguide:coordinate_mapping [2019/08/06 04:27] (current)
optrix
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 ====Coordinate Mapping==== ====Coordinate Mapping====
  
-Coordinate mapping helps convert ​the ARDI coordinate system ​(which ​is based on the uploaded floorplan data, so may be measured in pixels), to real-world coordinates.+ARDI stores ​the position of your assets based on an arbitrary ​coordinate system ​that is created when you first build your environment. 
  
-ARDI currently supports two different ​real-world coordinate systems - **Real World** and **GPS**.+For example, you may have created an empty environment that is 200x200 units long and wide, or based your environment off a photograph that was 1200x1900 pixels across. 
 + 
 +But these values don't translate into anything //real world// - often the drawings or images you base your environment on aren't aligned with north, and 1 unit of ARDI distance could be a millimetre or a kilometre - there'​s no obvious way of converting ARDI positions to real-world ones. 
 + 
 +**Coordinate mapping** gives ARDI the infromation it needs to convert its own internal positional data to real-world measurements. 
 + 
 +ARDI currently supports two different ​non-ARDI coordinate systems - **Real World** and **GPS**.
  
 ===Real World Coordinates=== ===Real World Coordinates===
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 There are a few steps to configuring your '​mapping'​ between the three different coordinate systems. There are a few steps to configuring your '​mapping'​ between the three different coordinate systems.
  
-As well as your existing web session, we suggest.... +As well as your existing web session, we suggest.. 
-a) Opening the ARDI map of the location.+ 
 +a) Opening the ARDI map of the location, and 
 b) Opening a Google Maps map of the location. b) Opening a Google Maps map of the location.
 +
 +===The Process===
  
 1) Go to your environment asset and choose **Placement & 3D | Update 3D Environment** and choose **Coordinate Mapping** 1) Go to your environment asset and choose **Placement & 3D | Update 3D Environment** and choose **Coordinate Mapping**
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 3) Enter the details of the three points in ARDI coordinates. You can find these in the top-right of the map web page when you hover your mouse over them. 3) Enter the details of the three points in ARDI coordinates. You can find these in the top-right of the map web page when you hover your mouse over them.
  
-{{:​ardiadminguide:​coordmapping.png?​600|}}+{{:​ardiadminguide:​coordmapping.png?​400|}} 
 + 
 +4) Enter the details of the three points in GPS coordinates from the Google maps. You can find these by left-clicking on the point - the exact GPS location will appear at the bottom of the page. 
 + 
 +5) Enter the details of three points in East/North coordinates. The easiest way to do this is to right clicking in Google Maps choosing **Measure Distance**. Left-clicking will then allow you to measure the distance along each of these lines horizontally and vertically, then enter those details in. 
 + 
 +//GPS Accuracy Note: Because GPS coordinates are not linear, ARDI may lose precision when converting GPS coordinates in very large (+2km) environments. However for anything smaller than this, the accuracy losses are minimal.//
  
 +Once all of these figures are in, you can save them. ARDI will then be able to freely convert between each of these three coordinate systems.