I have tried rightclicking on layer in arcmap and selecting data and then export data. The data files are provided in esri shapefile format. Take your maps with you everywhere you go with explorer for arcgis, available on ios, android, and windows 10. These free gis software give you the firepower to get the job done as if youre working with commercial gis software. A shapefile is a geospatial data format for use in geographic information system gis software. It is now possible to read and write geographical datasets using the shapefile format with a wide variety of software. Explorer for arcgis digital maps at your fingertips on mobile. The shapefile format stores the data as primitive geometric shapes like points, lines, and polygons. It creates a 3d map or a contour chart from the scattered points, numerical arrays or other data sets. This is a commonly used format that can be directly used in arcanything, divagis, and many other programs. The topographic contours download tool provides a way to download topographic contour data for fulton county, georgia for use in geographic information system gis and cad software.
Each shapefile consist of at least three actual files. Right click on the following links to save the zipped shapefiles to your computer. Select the x field and the y field and leave the z field as. The temporary neighborhood statistics grid was used as the input surface and the contour interval was set to 1 meter. Here, 10 would be used for the base contour, and 15 would be the contour interval. But before we are discussing about drawing contour lines in qgis, lets start talking a little bit about the concept of contour line, what contour line definition is, contour lines characteristics and and how the method in drawing contour line. The cartographic boundary files are available in shapefile and kml format. Example shp files exported from surfer golden software support.
Join researchgate to find the people and research you. A base contour is used, for example, when you want to create contours every 15 meters, starting at 10 meters. I can get the elevations to come in as object data but dont know how to redefine this to the elevation in the geometry properties. You can use data from your organization or browse for publicly available maps. If multiple files have been imported, create a v irtual raster to manage the dsm dtm files as one single file. Ive been trying to work out how to do this based on this previous question, notably from this link from that page, however im stuck, and was hoping someone could help. How to download gis data for any country especially.
For kml versions of these files, please see our cartographic boundary files kml page. How to download usgs topo maps for free gis geography. There are ways to clean it though, nothing automatic as far as i remember unless you want to involve a little bit of python but look it up, dont take my work for that because i am programming most of my gis processing and i am not a good user of. Can anyone suggest to me a free and good software for making contour maps. Now, that i am able to create the contour and shapefile on the same plot. From these contours, a sense of the general terrain can be determined. All aspects of 2d or 3d maps can be customized to produce exactly the presentation you want. In the following example, i am going to clip a contour shapefile. How to download free geographic gis data for any country in the world especially shapefile and stream network and dem. Webgis is where you can find all the leading information and resources for geographical information systems. The software will list the contour 3d analyst tool in the search results.
Contour elevations gis data in esri shapefile format. How to create raster from contour file in mapinfo pro gis. Contour lines are one of several common methods used to denote elevation or altitude and depth on maps. Remove the included example map files, and copy your own shapefiles here. After i imported the shapefile to autocad, the elevation under geometry is still blank please see the attached screensh.
Contour elevations gis data geojson geojson 19 views. Create contours from xy data using 3d analyst summary. Shp files usually store the xy coordinates in the shp file and the z coordinates in a dbf file. How can i export a matlab contour as a polygon shapefile. Surfer and previous require xyz data points in a supported data file format dat, txt, xls, xlsx, 3d dxf, etc to create a grid file grd.
The software component swlib and others are available. Ess shape viewer is a free shapefile viewer software for windows. The best solution ive come across is the free program dem2topo. The contour options window lets you set the contour interval, colors, font for labels, even export the contours as a shapefile. Sep 26, 2017 the polygon below the dark one has no hole.
Download digital terrain dem digital elevation model and. Digital elevation model is a 3d representation of a terrain. In this article, i will show you how to create a raster image from a contour file. I have been trying for a few days to create the contour and then plot the shapefile and contour on the same file. For statebased and national congressional district cartographic boundary files for the 103rd through 110th congresses, see our ftp site. Contours do not extend beyond the spatial extent of the raster, and they are not generated in areas of nodata. Rightclick on the table and select create feature class from xy table. Nov, 2014 there likely will be issues with accuracy. The contour values do not need to be sorted in order. Shapefiles are compatible with a wide range of gis and cad software but if necessary can be converted to.
We dont have to do hectic work like this as webgis provides us with readymade digital elevation data. If smoothed vector contours are required in a feature class format, they can be created in two steps. Download esurvey shape installing esurvey shape install esurvey shape like any other windows application. Converting digital elevation models to shapefiledxf contours. The shape file, once imported into autocad, does not have the contour elevations associated with the linework, only the attribute, which requires an extra step in cad to change. Topographic contours download tool fulton county, georgia. The surfer shapefile export creates the shp, dbf, cpg, and shx files and prj files if the map is georeferenced.
Can anyone suggest to me a free and good software for making. Export contours to shape file geonet, the esri community. I was given a shapefile contains many polylines and associated elevations. Specifying a base contour does not prevent contours from being created above or below that. It may be that the professor wants something as simple as a handdrawn contour map with approximate contour locations for general representation purposes, which could be easy to do and not require gis. Download free palestine and israel country, cities and places. Specify an output shapefile or feature class and click ok.
This is because you can do it all with free gis software. What similar or related data should the user be aware of. Contour lines were generated were generated using the contour operation. Software convert autocad dwg dxf to esri shape file.
It is helpful to visualize and analyze pix4d outputs. Instructions provided describe how to create contours from xy data using 3d analyst. This tutorial will discuss how to create contour lines in qgis. This can not work for a series of geoprocessing operations zonal stat, intersects, etc. Search capabilities help to find places and features such as. In the contour dialog box shown below, select the previously filtered elevation raster file for the input raster field by clicking the browse button.
I am trying to export contour shape files for use in autocad. Ill cover better options for contour line shapefiles in some future posts. First, use the contour smooth only type as illustrated below, and either export the resulting dem as a raster saved to disk, or save a raster layer that includes the result from the contour smooth only option. Hello everyone, welcome to another arcgis tutorial. I want to create a dem from depth contours shapefile in qgis. Everlymap is a free shapefile editor you might like. Converting the above 10meter dem to shapefile contours took well over an hour, albeit on my fairly pokey 2. But these reign supreme for free mapping software. In the raster menu, there are some raster tools that is very useful to create, edit and convert raster. Creates a feature class of selected contour values from a raster surface. Feb 27, 2014 i am trying to export contour shape files for use in autocad. In these shapefiles, the contours will be made up of line segments, not continuous lines. There are many options to choose from when exporting to a shp file from surfer, a few of which are demonstrated in the attached example files.
This tutorial assumes that the elevation data either as points. Convert a shapefile shp to a grid grd in surfer golden. Shapefiles contain a single class of vector data such as points, lines, or polygons. Smoother but less accurate contours can be obtained by preprocessing the input raster with a focal statistics operation with the mean option or the filter tool with the low option. In the previous tutorial, i have shown how to clip layer with the polygon in mapinfo professional. Click to blue tool name to open the contour dialog box. If you simply want to be able to view the geographic and attribute data for a shapefile, there are several shapefile viewer options out there, both desktop shapefile viewers and an online shapefile viewer. I am trying to import shapefile contours to cad and keep the elevations. Tatukgis viewer is a free gis mapping and data editing software. The shapefile format was introduced with arcview gis version 2 in the early 1990s. Apr 24, 2016 how to download free geographic gis data for any country in the world especially shapefile and stream network and dem. You may want to check with your professor on what the purpose and requirements of the project are. I was trying to convert this shapefile to contours in autocad 2015.
If you are using mapinfo pro 64 bit edition bundle with discover, you will notice the raster menu. Get explorer for arcgis on your smartphone or tablet to take your gis with you in the field. Aug 10, 2017 contour elevations gis data shapefile zip 177 views. It is generated by collecting elevation points of terrain. At its core, simple gis client is a feature rich microsoft windows based gis software application, powerful enough to run as a fully functional desktop gis software application but lightweight enough to run on windows laptops and tablets for field data collection or trip planning and navigation. How to use the output from contour, which is just x, y and z data, to make a shapefile of the contour lines for output into arcmap. In the following article, we are going to learn how to clip shapefile with a polygon on arcmap 10. Weve been trying to use usgs topo map layer with open street maps, but the contour interval appears to be bigger than on the downloadable 7. Contour elevations gis data shapefile zip 177 views. I want to clip the contour with the shapefile an only show the shapefile.
There are ways to clean it though, nothing automatic as far as i remember unless you want to involve a little bit of python but look it up, dont take my work for that because i am programming most of my gis processing and i am not a good user of the arcgis. The values to be contoured would be 10, 25, 40, 55, and so on. Quantum gis qgis is a free and opensource software for geographical information system gis usage. The elevation data is typically in the form of points collected by either total station, level, digital theodolite, or some other type of surveying instrument. There are any number of ways to convert a digital elevation model dem to shapefile vector contour lines, but most of the ones ive come across have had limitations of one sort or another. For statebased and national congressional district cartographic boundary files for. Looking for free shapefile editors geographic information. This free software will convert an autocad file in dxf or dwg to a shape file.
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