Teaching

Q: How can I create a DEM from contour lines?

By • • Knowledge, Teaching • , , • 1 minute of reading

Answer Depending on what you want to use the resulting raster for, there are a few alternatives. It is possible to generate a DEM from a contour line shapefile, though some methods will tend to have “stair-step” artifacts and lower spatial resolution than the original data. Adding data from other sources and pre-processing your contours can reduce these problems. You can use the contour lines as input to build a TIN, and then export the TIN to raster. See these ESRI Webhelp pages: http://resources.arcgis.com/en/help/main/10.2/index.html#/What_is_a_TIN_surface/006000000001000000/ http://resources.arcgis.com/en/help/main/10.2/index.html#/Creating_TIN_surfaces_from_vector_data/006000000002000000/ http://resources.arcgis.com/en/help/main/10.2/index.html#/Fundamentals_of_editing_TIN_surfaces/006000000004000000/ If you have the 3D Analyst extension use the “Topo” tool. It is designed

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Agent-Based Modeling (ABM)

By • • Knowledge, Teaching • • 2 minutes of reading

Conceptually, in ABM you give instructions to virtual agents that allow the agents to interact. Agents can be animals, tanks, parcels, delivery trucks, or any discrete object. From the resulting decisions and actions of the agents, patterns are created in space and time. Unlike many other modeling techniques that quantify and then re-create the patterns, agent-based models explore the causes of the patterns; the patterns are emergent properties from the individual decisions of the agents. Agent-based modeling, combined with spatial data, allows you to address a wide array of problems such as the following: Developing corridor connectivity networks for wildlife movement

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How do Editors look at your paper

By • • Jurnal, Knowledge, Public, Teaching • 1 minute of reading

When you are doing research you are primarily focused on your hypothesis, methods, test results and research outcome. You are an expert in your research field and are very aware of what others are researching and publishing too. But the actual art of getting your own paper ready for publication requires quite some expertise and a great deal of serious attention and preparation. Please join us for the online lecture: Presentation: Valuable points to take in when you choose a journal and submit your paper Q&A session: with Elsevier’s Executive Publisher Jaap van Harten Moderator: Gwendolyn Holstege, Researcher Relations Manager

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Malaysia Coordinate Transformation Program

Malaysia Coordinate Transformation Program

By • • Knowledge, Public, Research, Teaching • , , , , , , , , , , , , , • 6 minutes of reading

By Shahabuddin Amerudin Geographic Information System (GIS) software has significantly advanced the way we approach mapping and spatial analysis, providing essential tools for converting between various coordinate systems. One of the key innovations in this field is the Malaysian Coordinate Transformation Program, developed in 1998 at Universiti Teknologi Malaysia (UTM). This program remains a crucial tool for professionals working with geospatial data in Malaysia. This article offers an in-depth exploration of the coordinate transformation process from the global WGS84 system to the local Malaysian systems, such as the Malayan Revised Triangulation (MRT), Rectified Skew Orthomorphic (RSO), and Cassini-Soldner systems. Understanding

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