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Sorry here are attached screenshots. Thanks for your suggestion also Xander though it didnt seem to change the appearance.
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06-11-2017
08:14 PM
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Hi Jayanta, Thanks for the reply. Ive jotted some answers to your Q below. Could you explain the "non-cartographic" nature of the contours? I was hoping for contours that look like the attached screenshot of wellington city (image on the right). i.e not so many islands and odd shapes as in mine. Possible? What is the cell-size of the DEM? 1,1 In Focal Statistics, did you use the following parameters? Statistics_Type = MEAN. Yes Neighbourhood = 3X3. Yes Try using 5X5 or 7X7 for more smoother effect. But the cell values will become more diluted. The attached screen shot, (image on left) shows the outcome with the 7x7 = similar result. I also tried the fill option and the result remains identical. Am i incorrectly doing the order of operations here? i.e With focal statistics I have been imputing the DEM then applying the contour operation to the new layer - focal statistic DEM.. if that makes sense.. Likewise with the fill - I used the DEM as the input raster then applied contours to the modified raster. Thanks again! Simon
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06-11-2017
08:12 PM
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Hello All, I have generated a few different sets of contours (1m, 5m, .25m intervals) from a DEM I have of Christchurch city. With each interval tested above, the contours that result are very 'non cartographic'. I have tried simplifying & smoothing but would like a much more generalised outcome if possible. I also used the focal statistic operation on the DEM then generated contours from the outputted raster but the results were similar. Have I incorrectly used the focal statistic operation? Any suggestions / help appreciated! Thanks
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06-07-2017
02:02 AM
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Hi Thomas, Thanks for the quick answers. Navigation display found and I can see that it is referencing the elevation data correctly. The tutorial you reference is useful though the difference when one begins their own project is that there are numerous files associated with downloaded DEM data then the single.jpg file that is ready to drag and drop in the above tutorial. Re #5 CityEngine Essential Skills: Importing Terrain and Imagery: Here they drag and drop the jp2 files not the jpg files for processing in Arcmap to use as the texture map in CE. Also they download a DEM as a .img file. Q: Is there a reason for using the .JP2 not .JPG? Q: They select a handful of files associated with the DEM data (after processing in Arcmap) and copy into maps folder in CE. Are the only two files needed the .TIF and .TFW file you mention above? Thanks in advance, just trying to understand all the different data and file types, to set up our project correctly! Simon
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02-15-2017
04:12 PM
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Hello, I have downloaded a DEM and set of geo referenced aerial imagery in order to model of a portion of Christchurch City, NZ using City Engine 2016 1. DEM: See Screen shot for the contents within the extracted DEM folder Process: I have copied this folder and all of its contents into the data folder in my CE navigator. Then I dragged and dropped the PI.tif file into my scene. This created a height map. The values being min -2, max +18. Question: I can't see any variation in the terrain? Is it too subtle to notice or have I not imported correctly? 2. Aerial Imagery: The aerial imagery data I have downloaded looks as follows. Question: Can I simply stitch the .jpg files together in Photoshop and ignore the other files. Then bring in this JPEG file into CE by itself to be used as my texture map to link with the DEM above. The extents of the areas downloaded for DEM and Aerial imagery are the same. Anyone in Sydney able to share some city engine knowledge with me? ESRI essential skills tutorials on data + import are helpful but I need better overview of the file types associated with a DEM and other GIS data and how to import and use this data in CE. Thanks, Simon
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02-14-2017
09:25 PM
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