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The number of line are the same ... You can validate the join before to do it. The problem (bigger) is that it doesn't match. I got integration values on lines which were not the same as in depth map Giuseppe Roccasalva Politecnico di Torino - Research Fellow - School of Architecture, Urban Design and Planning Phone contact (Skype nick): desideratasky Address: c/o SiTI V. P. C. Boggio 61-10138 Turin, Italy Il giorno 12/feb/2013, alle ore 22:21, Samira Ramezani <[log in to unmask]> ha scritto: > Dear George, > > Thank you for the detailed explanation . However, the problem is that I have less lines in the text file which means Depthmap has reduced the number of lines. The number of lines are not increased after the analysis in depthmap! I don't know if Giuseppe experienced the same problem! the difference was about 10! > > I drew the map in Autocad and then added it to Arcmap and exported the polyline shapefile from it. Then, I followed the steps you mentioned and encountered the problem I explained. > > However, I also tried to process the DXF file I had drawn in autocad before adding it to Arcmap and I noticed even more difference in the number of lines! I had about 300 lines more (in this case more lines!) in the Text file exported from Depthmap! > > In short, it seems that the number of lines are reduced when you import the DXF into Arcmap. And, after processing it in Depthmap the number is still reducing! which makes it impossible to join the data together! (However, the map seems to be correct and no line is missing when you look at it in Arcmap or Autocad or Depthmap!) > > > > > > > > On Tue, Feb 12, 2013 at 6:17 PM, George Hallowell <[log in to unmask]> wrote: >> Samira and everyone: >> >> Yes, I probably do have an explanation for this conversion problem: If you were using GIS to draw the original axial line map. What I have seen happen occasionally – when drawing lines in GIS – is that when you double click to terminate the line you are drawing, if you clicked too slowly, you actually got a second, very short line segment at a different angle away from the point where you meant to stop the line drawing – a tail or sort of short extension – probably only a few feet long. When you look at the final drawing in GIS, it looks fine, but remember that GIS is drawing polylines not individual straight lines between two vertices. When you export to DXF, everything still looks fine because a polyline works fine in Autocad. But, when you import to Depthmap, the program separates all polylines into single straight lines between vertices. So the short segment that you accidentally created is now, in Depthmap, a separate line just a few feet long. When you reimport to GIS, you may occasionally have few extra lines, (the short accidental extensions, or tails, you originally created in GIS) and therefore the number of lines (REF or FID) no longer match. >> >> If this is happening to you, here is the solution: >> >> Before you export your axial drawing to DXF to send to Depthmap, clean the axial map within GIS to be sure you don’t have any unintended tails (short extensions). >> In GIS, look under “ARC Toolbox”, and open “Data management Tools”, then open “Features” – double click “Split line at vertices” >> Put the name of the layer that you used to draw the original axial map as the input feature. As “output feature class” put in a similar name, but add revised, or check to the name. Hit OK >> When GIS is complete with the task, open the attribute table for your new revised axial map and compare the FID number (number of lines in the file), and compare to your original axial drawing layer. >> If the total lines, or FID numbers match, then the file is clean and you shouldn’t have any problems. >> If the IFD numbers (total lines) don’t match, here is how to fix: >> Add a field in the revised axial line drawing, and call it “Length” with Type = double (double accuracy) >> Then right click on the header at the top of the field name (“Length”) that you just made, and chose “Calculate geometry” >> Then right click in this same “Length” field, and chose “Sort Ascending”. >> You will probably get one or several lines with very short lengths – probably one or two feet long. You can view those lines by selecting that feature (line) along the left margin, then go to the “zoom to selected” tool on the tool bar of the attribute table window – this will zoom into that axial line with the really short length. >> If the line - or lines - is indeed an error (one of those accidental short tails or extensions ) then go to the editor tool, select “start editing” and chose the revised axial line layer, in the attribute table, select the feature (or features) that is the really short accidental tail line, and chose “Delete selected”. >> Then go back to the editor tool, select “stop editing” and save. >> The revised axial line drawing should now be “clean” and ready to export as your replacement axial line map a DXF file to Depthmap. I would also double check your files when you have processed within Depthmap (before export as a text file) by comparing the REF numbers to the original FID axial lines that you saw in your cleaned GIS file to be sure the numbers match. >> >> Hope that helps, >> >> George >> >> George Hallowell, AIA >> Ph.D. Candidate, NCSU College of Design >> [log in to unmask] >> >> >> >> On 2/12/13 9:22 AM, "Samira Ramezani" <[log in to unmask]> wrote: >> >> Dear George and all, >> >> Thanks for the explanation about converting Depthmap files to ArcGIS. But, I have encountered a problem while testing this method! >> >> When I joined the text file to the axial map in ArcMap I noticed that the number of lines in the text file are less than the number of lines in the axial map. I tried to join them based on the matching records and when I checked the attribute table I noticed that the syntactical values assigned to the lines in ArcMap are not consistent with the values in Depthmap which means the REF number and FID number do not match! In fact, the main problem must be the reduction of the number of lines (REF or FID) when exporting the shapefile as a dxf file! >> >> Does anyone have an idea of why this happens? Thanks. >> >> Best, >> Samira >> >> Samira Ramezani >> Ph.D. Candidate in Urban and Regional Planning >> Dept. of Planning, Design and Technology >> DATA - Sapienza Università di Roma >> via Flaminia 72 - 00196 Roma >> >> >> On Tue, Oct 9, 2012 at 11:16 PM, George Hallowell <[log in to unmask]> wrote: >> Renato and Abdelbaseer: >> >> The process to convert Depthmap files to ArcGIS by exporting is relatively straightforward, but involves several steps. (it would be much better if it were built into Depthmap) >> >> To get an axial map out of ArcGIS: >> In ArcMap - first open the attribute table of your axial map (if you created the file in ArcGIS) and chose “select all” >> Then right-click the axial map layer in your ArcMap table of contents, and select Data>Export to CAD. I recommend saving CAD as DXF, 2007 version. >> Remember to save and do not change the axial map layer you have created in ArcGIS – you will need it later. >> Open the CAD file you just created as a new map in Depthmap and process the file. >> >> >> To get your Depthmap processed file back out of Depthmap and into ArcGIS: >> Export the Depthmap graph file/map (from within Depthmap) as a .txt format text file. >> I recommend using Microsoft EXCEL as an intermediate step here – From within Excel, open the .txt text file of the graph file you just exported from Depthmap. Excel will ask if you want to treat as a tab-delimited file – just say OK. When the file is open in Excel, save as a Excel 97-2003 Workbook (it works better than later versions). >> Within Excel, I would also change the column headings for which ever Depthmap data columns you will need in ArcGIS from the way Depthmap labels it: For example, change “Integration Rn [HH]” to something like “Integ_Rn” or you will have problems importing back into ArcMap because ArcGIS has column title character limits and cannot handle brackets and parentheses in column/field titles. Then save your Excel modified Workbook. >> Finally, go back into ArcMap and right-click on your original Axial Map layer in the table of contents: select Joins and relates>Join. >> Within the join command dialog box, “Choose the table to join this layer..” and select your modified Excel file of the Depthmap graph file. >> In the “Chose the field in this layer that the join will be based on” select FID. >> In the “Choose the field in the table to base the join on..” select ref >> Then click OK, and your Depthmap data will be joined with your georeferenced Axial map within ArcMap. >> >> Hope this helps. >> >> George Hallowell >> NCSU College of Design >> >> >> >> On 10/9/12 4:11 PM, "Renato Saboya" <[log in to unmask] <http:[log in to unmask]> > wrote: >> >> Hello: >> I also export to mif and then to shapefile. The ability to export directly to shp would be a nice addition to Depthmap! >> Best, >> Renato. >> >> >> >> >> On 05/10/2012 10:29, abdelbaseer A.Mohamed wrote: >> >> >> >> Hello >> I mostly associate Mapinfo with Depthmap for syntactic analysis. However, I find it of great significance to integrate Depthmap with ArcGis, but I do not know how to do so, as I think that files exported from Depthmap are not compatible with Arcmap. even mif files should be coverted to shape files in arc catalog. I would be grateful if somebody could share the knowledge about this point. >> yours >> Abdelbaseer >> >> >> >> >> >> >> >> >