Sydney Dombowsky
Articles
Recent activity by Sydney Dombowsky
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Alpha Compositing: Transitioning to White
IntroductionAlpha compositing is the process of blending an image with a background using alpha values to set transparency, creating a seamless image with a smooth transition along the boundary. Th...
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Calculating Vegetation Indices in FME: Analyzing Wildfire Impact with NBR
IntroductionNBR is a vegetation index that uses the spectral properties of satellite imagery to assess burn severity and vegetative regrowth. In this tutorial, we will use FME to calculate this ind...
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Converting CityGML to INSPIRE 3D Buildings (Annex III)
IntroductionIn this tutorial, we will convert CityGML to INSPIRE Annex III Buildings. Building models are often stored in CityGML, and this format has strongly influenced the model for INSPIRE 3D B...
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Area Measurements with the AreaCalculator
IntroductionThe easiest way to measure areas in FME Workbench is to use the AreaCalculator transformer. This example utilizes park data and the AreaCalculator, which calculates the area of each par...
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Using Recorder and Player Transformers Effectively
IntroductionThis article explains how to use the Recorder and Player transformers to cache data from a database to an FME Feature Store (FFS) file on disk. This is useful when database access is sl...
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Distance Measurements with the GeographicLengthCalculator
IntroductionMeasuring distances in FME can be done in a variety of ways. However, much data is stored with Latitude and Longitude coordinates, which complicates measuring distances. Distances are r...
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Extracting Data within a Clipping Polygon using FeatureReader
IntroductionWith FME Flow and FME Form, we can use an area of interest polygon (e.g., a city boundary) to clip a set of user-specified layers that fall within it. This is different from the more tr...
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PointCloudSplitter: Splitting Point Clouds by Components
IntroductionWhen point cloud datasets are collected, several component values are also recorded for each point. This can include information such as color, coordinates, elevation, intensity, and cl...
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Writing Cesium 3D Tiles with FME
IntroductionIn this article, you will learn how to write Cesium 3D Tiles from GeoJSON and JPEG. Using a GeoJSON file of building boundaries from the City of Surrey and a snow texture JPEG, we will ...
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Creating a Textured CityGML Model
IntroductionThis example creates a simple, textured CityGML model from our Interopolis 3DS model utilized in the previous example. CityGML is an OGC standardized GML application schema for represen...
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