Drawing data generation device and drawing device

A drawing device that draws an image using a graphics library, wherein the graphics library has a line function that sequentially connects points specified by line data to draw a line,

• the drawing device comprising:
• an original database that stores original data to be drawn, which is generated in a unit of a mesh of a predetermined size;
• a line drawing data processor that, when there are a plurality of meshes as an object of drawing, virtually links and integrates end points of line data included in different meshes to line data of one integral line;
• and
• a drawing section that performs drawing by calling the line function based on the integrated line data.

A drawing data generation method performed by a computer to generate drawing data for drawing an image using a graphics library, wherein

• the graphics library has a line function that sequentially connects points specified by line data to draw a line,
• the drawing data generation method comprising:
• reading original data to be drawn from an original database which stores the original data to be drawn;
• and
• integrating a plurality of line data among the original data to line data of one integral line, wherein
• the integrating the plurality of line data extracts a plurality of line data, which share a common setting of the line function for drawing, among line data included in the original data, and
• the integrating the plurality of line data generates data to link end points spatially away from each other among end points of the line data by a hidden line, so as to connect and integrate the plurality of extracted line data to line data of one integral line.

A drawing method performed by a computer to draw an image using a graphics library, wherein

• the graphics library has a line function that sequentially connects points specified by line data to draw a line,
• the drawing method comprising:
• reading original data to be drawn from an original database that stores the original data which is generated in a unit of a mesh of a predetermined size;
• when there are a plurality of meshes as an object of drawing, virtually linking and integrating end points of line data included in different meshes to line data of one integral line;
• and
• performing drawing by calling the line function based on the integrated line data.