Patent ID: 7671998

Claim:
A surface configuration measuring method, comprising a step of drawing a straight line on a surface at a position where a cross-sectional configuration is desired to be acquired, said line traversing said cross-sectional configuration, a step of designating a measurement range including said line, said measurement range having a predetermined width including said line, a step of providing two or more markers on said line, a step of acquiring measurement data by distance measurement and angle measurement with respect to said markers and said predetermined measurement range from a point, a step of acquiring from the direction of said point an image of a range including said predetermined measurement range as an image data, a step of superimposing said image data on a measurement data by matching said markers in said image data with said markers in the measurement data, and a step of calculating measurement data of said line from the line position in said image data and from the measurement data near said line, and wherein said step of acquiring said image is carried out after said step of drawing said line.