Note: If you have elevation data in drawing, please download ESurve圜AD lisp from the download section and run “EXPD” command and create a CSV file (Point Data) from your CAD drawing. Depending on the headings in the CSV file mention the column numbers in which Easting (X), Northing (Y) & Elevation data are located. Select Contour option from modules drop down menu.Ĭlick on Browse button and locate the CSV file from your computer. Login to with your email id and respective password. Number of grid elevation is limited to 10,000.Number of points you can process at a time is limited to 20,000.You can specify the contour interval in a way – maximum of 800 contours can be created in one process.You can process data with maximum elevation difference of 200 meters (This limitation is given in view to avoid processing amgious data).Before processing the file following limits are checked and only if input data is within specified limits, then the process will continue. Online application ESurve圜AD will not generate the contour map for any input given. You have to specify Scanning Radius as a factor which indicates approximately at what distances your input data is captured. If you don’t have boundary definition file, you can give a factor called Scanning Radius to help the application prepare an approximate boundary. You can create the boundary definition file from your CAD drawing using the free lisp program provided in the download section. In the CSV file Easting, Northing and elevation are required to be in Metres only.Īlthough it is not compulsory to give boundary data, we strongly recommend you to provide the boundary definition file as input for better results. It may be kindly noted that the units are to be only in metric system. CSV file may contain additional column data like Serial Number, Code (Remark) but, having X (Easting), Y (Northing) and Z (Elevation/Level) data is mandatory. In CSV file Easting (X), Northing (Y) and Elevation (Z) Co-ordinates are expected in the contour input file. You can also generate the Contour based volume report.ĬSV file containing point data. You can specify the grid spacing to generate the grid line and respective grid elevation depending on point data provided. Online Software to Create Contour Map from Elevationsīy providing Point data in CSV file, that is by providing a file having Easting (X), Northing (Y), Elevation (Z) data as input, you can create contour map having Contour lines at the specified interval.

Contour lisp autocad