Vega Rendering API Overview Vega at a Glance Defining the Source Data Creating a Visualization using Vega Connecting to the Server and Rendering the Visualization Next Steps Tutorials Introduction Getting Started with Vega Getting More from Your Data Creating More Advanced Charts Working with Polys Marks Type Reference Introduction Width and Height Properties Data Property Projections Property Scales Property Marks Property Try Vega Tutorial Source Code Vega at a Glance Getting Started Getting More from Your Data Creating More Advanced Charts Working with Polys Marks Type Example: Vega Accumulator Density Mode Blend Mode Percentage Mode Example: Using the source Data Type with Transforms SQL Queries Render the Heatmap in Vega