Chart Coordinate Calculation Program 1.0 Green version download
Drawing sheet, the full name of which is the drawing sheet, refers to the size of the drawing drawing, which is divided into basic sheet and extended sheet. 1. Basic format (first choice) There are five types: A0, A1, A2, A3 and A4, which are completely consistent with the format code and size specified in the ISO standard. The specific size is: A0=1189X841 (mm) A1=841X594 (mm) A2=594X420 (mm) A3=420X297 (mm) A4=297X210 (mm) We can see that the length of the basic format is twice the root of the width, and the area of each adjacent format is twice the same.