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Showing posts with the label Spatial Data

044] How to Create Perpendicular Lines Along a Path in Global Mapper

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Automatically generate perpendicular cross-section lines along any selected path or boundary for precise site analysis. This tutorial covers the "Create Perpendicular Lines Spaced Along Selected Line/Area Feature(s)" tool in Global Mapper. You will learn how to set intervals and define perpendicular lengths, which is essential for professional road, river, and site cross-sectional studies. Today, we will explore the "Create Perpendicular Lines Spaced Along Selected Line/Area Feature(s)" tool, which draws perpendicular lines at regular intervals along a selected feature This feature is frequently used in drawings for cross-sectional analysis of business sites, roads, and rivers. Preparing the Line and Area Features First, draw an Area and a Line arbitrarily on the main screen. img 1 : Drawing Area and Line in Global Mapper After selecting both objects, Creating Perpendicular Lines Along S...

029] How to Split Polygon Areas with Intersecting Lines in Global Mapper

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Learn how to efficiently divide single area features into multiple individual parcels using the "Crop Area to Lines" workflow. This tutorial demonstrates how to split large polygon areas into separate features using crossing lines. This workflow is critical for urban planning and simulation projects where individual parcels require unique attributes or elevation values. In this tutorial, we will explore a simple yet essential function in Global Mapper. 🎥 Video Tutorial: Cutting Areas with Lines Need to split a single polygon into multiple pieces based on road lines or boundaries? Watch the video below! It provides a quick, visual guide on how to use the Digitizer tool to seamlessly crop and split selected area features using intersecting lines. Video guide on splitting polygon areas using line features in Global Mapper. Why Spli...

019] How to Create Area Features from Raster Image Colors in Global Mapper

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Learn how to vectorize satellite imagery and extract specific color-based area features. This tutorial explores the specific context menu options available for Raster Layers in Global Mapper. We focus on the "Create Area Features from Equal Values" and "Vectorize Raster" tools, demonstrating how to isolate specific land cover types or features by targeting RGB values and adjusting color fuzziness settings. Today, we will cover the context menu for Raster Layers . Open your previous project and activate the 'Image' layer. img 1 : Control Center window with the "Image" layer selected and satellite view showing agricultural land. Let's review the context menu functions available for Raster Layers. You'll notice they are similar to those of elevation layers, but a few items are missing: img 2 : Raster Layer's Context Menus. Create Workspace F...

018] How to Create Elevation Areas, Vectorize Rasters, and Generate TIN Meshes in Global Mapper

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Convert terrain data into simplified area polygons or complex 3D triangular meshes (TIN) for advanced spatial analysis. This tutorial covers advanced context menu functions for elevation layers in Global Mapper. You will learn how to group identical elevation values into area features, vectorize specific raster ranges, and convert Digital Elevation Models (DEM) into high-fidelity Mesh/TIN features for 3D modeling workflows. We continue exploring the Elevation Layer context menu. Create Elevation Area Polygons from Equal Values This function works with both elevation and raster layers. It groups elements with the same values into a single polygon. img 1 : "Select Layers" dialog where the user selects the "Elevation" layer to operate on When you run Create Area Feature from Equal Values... , a list of compatible layers will be displayed. Select the elevation layer and click OK. A ...

016] How to Automate Parcel Image Exports in Global Mapper Using Python

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Batch export high-resolution parcel images with satellite backgrounds using Global Mapper's Python SDK. This tutorial provides a complete Python script designed to automate the repetitive task of zooming into individual parcels and capturing images. By leveraging Global Mapper's scripting capabilities, users can process hundreds of vector features into standardized image outputs in seconds, significantly improving report generation efficiency. Why I Created This Script Today, I’m finally sharing a script I wrote some time ago and recently refined. I ask for your understanding; it has been difficult to concentrate on writing lately. The reason I created this script was because I saw a close junior of mine manually zooming in and out of hundreds of parcels in CAD, capturing each one for a report. I figured there had to be a better way than manually capturing hundreds of parcels one by one. img 1 : Main...