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Sydney Dombowsky

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Recent activity by Sydney Dombowsky

  • 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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