Setting up an image for the world coordinate system. Swmm 6

When you insert an image into SWMM5 , the image enters in standard size in any random coordinate. If we are with the world file of the image then the image stays in the actual coordinate representing the true nature of the land , coordinate wise . I would like to remind you that this only gives the true coordinate and does not give the elevation data of the image. Also the only method I know how to give the world coordinate to an image also requires the knowledge of AutoCAD. Cause you need the real coordinate vector data for this process. Cheers

STEPS:

1. Open Arc GIS –Arc MAP 
2.   Upon the initiation of the ArcMAP , start by creating a new empty map.
   
3.  You need the AutoCAD data where you have already created the map.( you need to do this step cause SWMM cannot take file with AutoCAD .dwg  extension
4. Click the add data button to add the AutoCAD drawing.
   
5. Add the autocad file with the dwg extension
   
    
6. The the figure should appear in the ArcGIS workspace . to get the full view of the drawing just click the full extent button.
   
   
   
7. after this . get the picture of the map, image or a google earth image that you have saved and import that into arcGIS as well
1. again click the add data button
   
   and navigate to your image file (.jpg extension)
   
2. the software will  ask you to insert pyramids cause the image has no pyramids. just say yes to
   
   it 
3. both the autocad drawing and the image are shown in the 'data frame' of the Arc Map
   
4. and when you right click the image in the data frame ... you can zoom to layer to see where the image has exactly landed
   
8. after getting both the files in to Arc Map , you have to use the tool within Arc Map called geo refrencing which you can get by right clicking on the blank spot on the toolbar and selecting geo refrencing
   
9. Now just use the double crosshair button on the side of geo refrence toolbar and select a point on the image and match it exactly on the autocad drawing . you can do this more conviniently by doing 'zoom to layer' in each of the layers after repeating the process at multiple points you get an image which is more accurately placed in the world coordinate system. have the layer in geo refrence selected to the image file as well. this is very important!!!!
10.  
11. The video for the above procedure is below but in the end of the video i forgot to show that you should also rectify the image to a given folder , this i have shown in the image below
    
    
12. after everything is done you import the said image in to swmm 5, also you import the world file which you have successfully created through the ArcGIS program. this process i have shown in the previous tutorial of how to import the image in swmm
13. now the image that you have is correctly positioned image file 
14. CHEERS :)