DEVICE FOR DISPLAYING CURVATURE DISTRIBUTION OF THREE-DIMENSIONAL SURFACE SHAPE

PROBLEM TO BE SOLVED: To provide a device for displaying a curvature distribution of a three-dimensional surface shape that enables an observer to easily visually grasp a distribution of distortion in a surface shape and smoothness and discontinuity of the surface shape on the basis of three-dimensional data.SOLUTION: A device for displaying a curvature distribution of a three-dimensional surface shape comprises: an operation device 4 that calculates, by using three-dimensional shape data indicating a surface shape of a specific area on a surface of an object obtained from a design instrument 11 and a three-dimensional measuring instrument 12, the value of curvature with respect to a specific direction of the surface shape in the specific area; and a display part 6 that displays the calculated value of curvature in the specific area as a two-dimensional distribution when the specific area is viewed from a top face. The display part 6 displays the two-dimensional distribution while changing the hue or brightness according to the value of curvature.SELECTED DRAWING: Figure 1 【課題】３次元形状データに基づいて表面形状における歪の分布や表面形状の滑らかさ、不連続性などを視覚的に把握しやすい３次元表面形状の曲率分布表示装置を提供する。【解決手段】設計機器１１や３次元計測器１２により得られる物体表面の特定領域の表面形状を示す３次元形状データを用いて、特定領域内の表面形状の特定の方向に対する曲率の値を算出する演算装置４と、算出された特定領域内における曲率の値を、特定領域を上面より見た二次元分布として表示する表示部６とを備え、表示部６は、曲率の値に応じて色彩または明るさを変化させて表示する。【選択図】図１