Computer-aided design (CAD),also known as computer-aided drafting (CAD) or computer-aided design and drafting (CADD), is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design.

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5answers
2k views

How much CAD experience for the GIS Professional?

As a GIS Professional, one is often expected to have experience with CAD (i.e. AutoCAD, Microstation) to the extent that they can integrate CAD data into GIS workflows and datasets. However, I often ...
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6answers
1k views

Open source CAD software

Does anyone know open source CAD software (like edit, update cad files and attach external information, create topology etc.) Researching on internet also (Going through Kosmo Desktop,DraftSight ...
8
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2answers
567 views

Python script to read CAD data to find polygon extents

I have Civil 3D 2012 with ArcGIS for AutoCAD 300. I want to read the extents of a polygon in the drawing. Feature Class in A4A300 = Boundaries, the CAD layer is PROP-BNDY, there is only one polygon on ...
7
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2answers
1k views

How to compute parameters for QGIS Affine transformation?

I have a vector floorplan (DXF) that I've added to a blank project in QGIS using the Dxf2Shp plugin. I've been reading tutorials and StackExchange threads, but I can't seem to find out how to ...
6
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4answers
4k views

Ways to transform from DWG/DXF to GIS (Experiences are welcome)

I've got tons of DWG/DXF files with information (in several layers) dealing with: Contour lines and elevation (lines) positions of antennas (points) protection areas (polygons) administrative ...
5
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2answers
579 views

Data security for GIS Data (shapefiles,AutoCAD files)

This is regarding security for GIS Data (in Esri & open source) (Esri shapefiles, AutoCAD files etc.) Does anyone know how to assign a password to or encrypt shapefiles OR CAD Data? I have found ...
5
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3answers
2k views

I exported a DXF from QGIS, but it won't open in AutoCAD

I'm new in QGIS and here is my problem: I exported a DXf from QGIS by right-clicking on the layer. Then tried to open in AutoCAD 2000. That did not work. AutoCAD gave a failure-message: Unknown ...
5
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1answer
3k views

Converting a CAD/DXF file to a SHP file

I need your ideas and suggestions about a problem.... I have a dxf file which was converted from a CAD file. I used QGIS to convert it to a shp file... This is when I realized that the text ...
4
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3answers
124 views

Geometric Operations in GIS Systems

I have worked with 2D geometry for CAD - My questions are general and relate to understanding operations on geometric entities (lines). Should geometric operations such as line-line intersection be ...
4
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1answer
3k views

How do you import a .SHP into Sketch-Up?

Does anyone know how to use a .SHP in Trimble Sketch-Up? I have tried exporting to KML and CAD from QGIS, but the KML file doesn't read in Sketch-Up. Thanks! -m
4
votes
5answers
757 views

Intersection of two lines tool

Is there any way to make intersection of two lines tool with extending lines option, so the result would be a point. the hardest part is when the lines have to be extended to intersect. the tool will ...
4
votes
3answers
6k views

Import Cad to ArcGis

I'm trying to import some CAD files from microstation (dgn) v7 to ArcGis 9.3.1 and i need to access the User Data Linkage from it but i have not the Data Interoperability License. Is there any ...
4
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0answers
716 views

Does QGIS have these CAD editing functions? [closed]

I tried QGIS for the fist time today and it seems quite capable for the task that I have in mind. However, I really miss some basic editing functionality from another GIS software that I have to use ...
4
votes
0answers
303 views

How to convert a set of points to a solid object?

I have a data generated as the output of some numerical processes. I need them to be converted into 3D solid objects (as CAD solid format) to make them importable for some particular numerical ...
3
votes
4answers
430 views

Migrating from GIS to CAD

There seem to plenty of resources out there to help users of CAD software move to using desktop GIS but is the reverse also true.
3
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4answers
417 views

Tools for planning a building

I'm planning to build a cabin, and I'd like to combine all the GIS data available from my home country with my own measurements for placing and the cabin layout. That is, I need a tool which can: ...
3
votes
1answer
591 views

cad and geoserver

Hi Guys i have geoserver and openalyers running quite nicely and now need to overlay a cad drawing. I have looked at the geographic location part of cad and set the long / lat to the appropriate ...
3
votes
3answers
974 views

Workflow to convert a DWG CAD file to a shapefile

I'm trying to develop a workflow where I can convert a .dwg file to .shp. I don't have a good understanding of which tools I should be using. My preference is to use software that runs on OSX, is ...
3
votes
2answers
197 views

Is it possible to create CAD file from shapefile and also create CAD blocks from the database fields

I am trying to find out if there is any software or plugin/code that I can bundle that will take a shapefile and export it to a CAD file with CAD blocks generated so our CAD mappers can just move the ...
3
votes
0answers
25 views

How can ASTER elevation data be converted to a CAD model

I am trying to convert ASTER elevation data to a 3D CAD model using only opensource software. I have tried using different file formats but I have been unsuccessful. I use QGIS for my GIS work and ...
3
votes
1answer
726 views

How to preserve dgn cad file attributes when exporting from microstation and importing into Arcmap?

I'm trying to import water utility lines from Microstation into ArcMap. The water utility lines are symbolized by size in Microstation, but when I try to view the attribute table in ArcMap the ...
2
votes
2answers
53 views

All CAD drawing is one layer and few merged features, and no annotation when opened in ArcGIS

I have a CAD drawing wich openes normally in AutoCAD. Hoevwer when it is opened in ArcGIS to import some data from it all the lines are on the same layer (insert) and all faetures of the similar ...
2
votes
2answers
170 views

How to fix undershoots in data converted from Microstation using ArcMap 10.0?

I have converted data from Microstation to ArcGIS. The converted data has undershoots at intersections, so I tried to snap lines using Spatial Adjusment. I've added some control points but ArcMap ...
2
votes
2answers
2k views

Can anyone help with an image attachment problem in Civil 3D?

I have a recurring problem in Civil 3D 2011. From time-to-time, I have to attach to an image file (ie - survey plan) and draft on top of it. In the case of the current work I'm doing, I am making ...
2
votes
1answer
370 views

Could you suggest software to draw a cross section, companion to QGIS?

If you use GIS systems, what software do you turn to when there is a requirement to draw a cross section? Ideally a workflow that includes QGIS. Typically there are some points which will coexist in ...
2
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1answer
717 views

qgis, autocad and google layers

Ive downloaded qgis and loaded the google layers plugin. I have imported a dxf cad drawing. Question is how do i place the shapefile in the correct place on the map? Also how do i tell google ...
2
votes
1answer
2k views

cad drawing overlay

I want to overlay a cad drawing on a google map using geoserver. Any tips on how i can do this. Do i need to convert to cad file to a shapefile. Im presuming i do. If so what tools are available ...
2
votes
1answer
34 views

How to select lines/polygons in QGIS CAD tool?

I'm intending to create parallel and orthogonal lines by using the CAD tool in QGIS. For each tool there is a button to select the feature before executing the tool. But though I fixed all the ...
2
votes
1answer
92 views

Georeferencing CAD Causing Close Out/Shut Down of ArcMap?

I am currently running ArcGIS 10.2.2 for Desktop. I have no other georeferencing issues regarding TIFFs shapefiles, or otherwise. However, when I introduce a CAD (or DWG) file into the map and ...
2
votes
2answers
1k views

How to convert a CAD 2D section into PolylineM(Z)?

Good morning, How do I convert a 2D section drawn in CAD into 3D polyline in ArcGIS. By 3D polyline I mean PolylineM(Z). I have 300 sections. Drafting it manually seems a bit laborious. Any Ideas? ...
2
votes
0answers
31 views

Importing ArcGIS and/or CAD template into QGIS print composer…Can it be done?

ArcGIS is used very widely in Environmental consultancy and the print/map templates used for reports are usually passed around in an MXD or CAD file format. Unfortunately we cannot afford ArcGIS and ...
2
votes
1answer
71 views

Landform design/3D in ArcMap 10.2

Im a self taught ArcMap user working in a small business, so no one to bounce problems off. My aim is this: I would like to be overlay different surfaces, manipulate them, and display them. The ...
2
votes
1answer
311 views

Align and georeference GIS layers exported from CAD

I have two separate CAD files of the same locale. The first one has surface data like street curbs, building footprints, etc. It is not georeferenced, but when I add it to other items in a projected ...
2
votes
0answers
234 views

exporting DWG from ArcMap need to unify segments to polylines

I am a green ArcGIS user so please bear with my poor nomenclature and rudimentary understanding of the software........ I am attempting to export to CAD a contour shapefile I have derived from LIDAR ...
2
votes
0answers
330 views

How to create polygon “stamps” and extend lines by fixed distance? in QGIS

This is related to Does QGIS have these CAD editing functions? Cadtools have solved a lot of the issues I had but I need the ability to see how long a line is while I am drawing an orthoganal ...
2
votes
0answers
131 views

How to configure various client applications to display AVL data?

Given x number of GPS units transmitting NMEA formatted strings back to a server (xxx.xxx.xxx.xxx:xxxxx) is there a way to listen in on the traffic and parse NMEA formatted strings for display on a ...
2
votes
1answer
106 views

Tracking which LiDAR data tiles have been delivered

My company works with LiDAR data for large electrical transmissions systems (thousands of miles in one project). We model the transmission lines and do analysis using CAD and GIS workflows. We break ...
1
vote
1answer
181 views

QGIS - WGS84 to BC Albers reprojection no curved lines, any idea why? How to snap a line to a point?

I am trying to learn a bit about QGIS. So I thought I would drop in some layers of my Province and then recreate some points representing the BC Albers Central Meridian, and the two standard ...
1
vote
2answers
335 views

Export to CAD - preparing the DWG seed file

I'm preparing a seed file in order to export to CAD and maintain all the attributes at all fileds. after creating the block definition I've export to CAD (Right click) using the seed file I made ...
1
vote
1answer
42 views

Maintaining CAD drawings and GDB, best practice

I'm wondering if there is a best practice for maintaining both CAD and ESRI GDB sytems simultaneously? I work for my local municipality and as it is now the Eng Techs update reference drawings in CAD ...
1
vote
3answers
92 views

Using QGIS2Leaf plugin to export into leaflet but output results into browser crash?

Amateur GIS technician here, Just tried to export my converted cad cities pipelines into a shape files and then export it into leaflet using QGIS2Leaf but the browser crashes before the displaying the ...
1
vote
2answers
31 views

Shifting .dwg file to align with a shapefile

I'm trying to integrate data in a .dwg file collected by surveyors into an ArcView 10.2 project I have projected as NAD83 UTM Zone 10 N. The survey data is in an undefined coordinate system but I ...
1
vote
1answer
37 views

CAD line drawing to GIS polygons

I'm a (reasonably) proficient GIS user (mostly QGIS, but some Arc GIS) who has been thrown the conundrum of converting/importing CAD urban planning drawings (2D drawings produce in AutoCAD 2014) to ...
1
vote
1answer
69 views

Georeferencing a CAD file and converting to SHP in ArcGIS without distance distortion

i have a land parcels dwg file in an unknown co-ordinate system and i want to georeference the file in ArcMAp and convert it to shapefile but the problem is that whenever i georef the cad drawings ...
1
vote
2answers
227 views

Creating a DEM from CAD contour polylines

Is it at all possible generate a digital elevation model raster from CAD contour polylines with elevations? I am using straight AutoCAD 2014, not Map3D or Civil3D. I was able to bring the dxf of ...
1
vote
1answer
125 views

Shifting a CAD file from ATS77 MTM 5 to NAD83 CSRS UTM 20

Looking to make the coordinate system shift in ArcMAP (for Nova Scotia) between ATS77 MTM 5 and NAD83 CSRS...NTv2 file?
1
vote
1answer
94 views

CAD to GDB import using ValueTable function

I have several CAD files (DWG) that I want converted to Feature Classes within a file GDB. Each feature class will be based on a polyline attribute "LAYER" value, so I have a query filter applied ...
1
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1answer
199 views

Batch clip DWG polyline

I have about 170 DWG files that need to be clipped to their corresponding tile. Each tile is 14,000ft wide, 8,000ft height. The grid: Each DWG file overlaps the tile border by 800ft: ...
1
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0answers
21 views

Conserving Labels during Export to CAD in ArcGIS for Desktop? [duplicate]

I can export files to cad (i use ArcGIS 10.2), but the converted file does not involve labels,. Then i tried to use another option, right click to layer name in Table of Contents then click Convert ...
1
vote
1answer
55 views

cadtool and spline plugins not working

Am trying to edit a line shapefile using a spline tool in QGIS 2.4.0 .Its drawing but the ok button is inactive. what could be the problem? Generally am trying to create a curved line.