SvgCreate

Creates an SVG from size (blank document), filepath or raw data.

Syntax

svg svgCreate ( int width, int height [, string pathOrRawdata, function callback ( bool didLoad ) ] )

Required Arguments

• width: Desired width, preferably power of two (16, 32, 64 etc.), maximum is 4096
• height : Desired height, preferably power of two (16, 32, 64 etc.), maximum is 4096

Optional Arguments

NOTE: When using optional arguments, you might need to supply all arguments before the one you wish to use. For more information on optional arguments, see optional arguments.

• pathorRawData: A string representing the path to your SVG file, or the raw SVG data
• callback: A callback function which is invoked upon SVG document and texture creation, useful for knowing when the SVG element is ready

Returns

• Returns an svg element if the SVG was created successfully, false otherwise.

Example

The example below shows how you can load an SVG from raw data (or path) and manipulate the underlying XML document.

IMPORTANT: Depending on your implementation, callback usage may be necessary to ensure the SVG texture and XML document are ready.

-- This could also be a file, with the path provided to svgCreate
local rawSvgData = [[
    <svg viewBox="0 0 500 500" xmlns="http://www.w3.org/2000/svg">
        <circle cx="250" cy="250" r="250" fill="#0fc0fc" />
    </svg>
]]

local svg

function init()
    -- Create an SVG containing a circle, using the raw XML data above
    svg = svgCreate(500, 500, rawSvgData, function(didLoad)
        if (not didLoad) then -- SVG failed to load, so don't continue
            return 
        end

        onSvgLoad(svg)
    end)
end
addEventHandler("onClientResourceStart", resourceRoot, init)


-- Implement a callback for SVG load, to manipulate the underlying XML document
function onSvgLoad(svg)
    -- Get the XML document from our SVG
    local svgXML = svgGetDocumentXML(svg)
    
    -- Add a rect SVG node, positioned center of the document
    local rect = xmlCreateChild(svgXML, "rect")
    xmlNodeSetAttribute(rect, "x", "25%")
    xmlNodeSetAttribute(rect, "y", "25%")
    xmlNodeSetAttribute(rect, "width", "50%")
    xmlNodeSetAttribute(rect, "height", "50%")
    xmlNodeSetAttribute(rect, "fill", "#00749b")
    
    -- Apply our XML to the SVG, and start drawing via callback
    return svgSetDocumentXML(svg, svgXML, function()
        addEventHandler("onClientRender", root, render)
    end)
end

function render()
    local width, height = svgGetSize(svg)
    dxDrawImage(0, 0, width, height, svg, 0, 0, 0, tocolor(255, 255, 255), false)
end

-- Add a keybind which sets the SVG to a random size
bindKey("r", "down", function()
    if (not isElement(svg)) or (getElementType(svg) ~= "svg") then
        return false
    end

    local size = math.random(100, 500)
    svgSetSize(svg, size, size)
end)

Requirements

This template will be deleted.

See Also

• svgCreate
• svgGetDocumentXML
• svgGetSize
• svgSetDocumentXML
• svgSetSize
• svgSetUpdateCallback