LabVIEW LEGO MINDSTORMS NXT Module Programming Guide Manual

LabVIEW LEGO MINDSTORMS NXT Module Programming Guide Manual
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LabVIEW LEGO MINDSTORMS NXT Module Programming Guide Manual

  • Chapter 2Extensions to LabVIEW© National Instruments Corporation2-55LabVIEW LEGO MINDSTORMS NXT ModuleNXTDrawCircleParameters:This system call method draws a circle outline specified by Center coordinates and Radius in pixels.All draw coordinates are relative to the lower left corner of the screen on the NXT brick.Set the least significant bit of Options to 1 to clear the entire screen before drawing. If you do not set this bit, the method overlays the circle on top of any pixels already drawn by the program. The circle outline is transparent; the method never modifies pixels inside the circle.The first drawing system call method to execute in a program automatically clears the screen regardless of the value of Options.The return value is always zero.ParameterData CodeI/O DirectionDescriptionStatus CodeI8outputUnusedCenterclusterI16 (X)I16 (Y)input-outputCoordinates from lower left of screenRadiusU8inputRadius, in pixelsOptionsU32inputBitfield of draw options