Posts

031] Global Mapper - Printing 01: Print

Image
Once you have completed your work in Global Mapper, the next step is to either print it for a report or save it as an image. This is a crucial step in communicating your GIS analysis results. "Before we begin, if you missed the previous session, check it out here:" [030] Global Mapper - Assigning Heights to Vertices: Edit Feature Vertices There are two primary methods for outputting your work in Global Mapper: File - Print: Using the standard Print menu (Note: This is generally less recommended as the size of vector elements and legends changes based on the output resolution). Map Layout Editor: Adjusting the layout professionally before printing (Recommended for high-quality reports). Today, we will focus on the first method: the File - Print menu. To follow along, you can use the sample file provided below (Note: In a real scenario, you would download the  ' Print.zip ' file.  This is a safe proprietary...

[030] Global Mapper - Assigning Heights to Vertices: Edit Feature Vertices

Image
Today, we will learn how to assign height values to the vertices of a Line or Area feature in Global Mapper. "Before we begin, if you missed the previous session, check it out here:" 029] Global Mapper - Cutting Areas with Lines: Crop Selected Area(s) to Selected Line(s) In various development and road design plans, design heights (Planned Elevations) are typically designated at major nodal points, with slopes indicated for the sections in between. However, since most CAD or design data is drawn in 2D (plan view), you must manually apply elevation values to each vertex to use them effectively in landscape simulations or 3D modeling. Open the practice file and let's get started.  Vertex_Height.zip (This is a safe proprietary data file for Global Mapper.) [img 1 : Global Mapper screen showing a 2D road centerline with elevation labels like FH:115.0, FH:100.0] As shown above, the road centerline is displayed along with planned elevations for major points, distances ...

029] Global Mapper - Cutting Areas with Lines: Crop Selected Area(s) to Selected Line(s)

Image
Today, we will explore a simple yet essential function in Global Mapper. "Before we begin, if you missed the previous session, check it out here:" 028] Global Mapper - Moving Attributes: Copy Attributes Between Overlapping or Nearby Features Often, when receiving CAD drawings related to district unit planning or urban development projects, you might find that the parcels are not divided into individual areas. Instead, it is common to have a single large area with only internal boundary lines drawn over it. However, to perform simulations for landscape reviews or digital twin projects, you must split these into individual parcels. Since each parcel may have a different planned elevation (Z-value), you need to position each one according to its specific height before placing buildings on top. Let's walk through how to do this by creating a sample project. [img 1 : Accessing the Create New Area Feature menu in Global Mapper] First, right-click on the screen and sele...

028] Global Mapper - Moving Attributes: Copy Attributes Between Overlapping or Nearby Features

Image
Today, we will cover the function of copying and moving attributes between features. Instead of processing queries by referring to attribute tables, this method determines whether objects are close enough or overlapping to transfer the desired attributes. "Before we begin, if you missed the previous session, check it out here:" [027] Global Mapper - Spatial Operations 03: Transforms Why We Need This: Integrating Building Height Data For landscape simulations, it is essential to know the height of buildings. However, the standard "Continuous Digital Map" (National Geographic Information) typically only provides the number of floors, lacking specific height information. In tasks where exact height isn't critical, we often use a formula like "(Number of Floors * 3) + 1" to estimate height. However, this formula is virtually useless in areas with many factories. Even a single-story factory can often reach nearly 10 meters in height. In such cases, ...

[027] Global Mapper - Spatial Operations 03: Transforms

Image
Today is our third session on Spatial Operations , focusing on Transforms . What makes this feature different from the previous two is that it doesn't just select, split, or delete; instead, it targets a single layer and creates new geometries based on the elements contained within that layer. "Before we begin, if you missed the previous session, check it out here:" 026] Global Mapper - Spatial Operations 02: Understanding Predicates Let's get started. First, open the file from the previous session. Since this content doesn't require extensive explanation, we'll go through it quickly. [img 1 : Global Mapper Control Center showing the layer list including Area01] Activate the Area01 layer. Now, let's examine the menu. [img 2 : Spatial Operations dialog box focusing on the Transforms tab] Spatial Transforms: Methods for Generating New Geometries MBR (Minimum Bounding Rectangle): Generates the minimum bounding rectangle for the selected...