Scaling method and apparatus, device and medium

A scaling apparatus, comprising:

• a scale mode determining unit, configured to assign a scale mode to each sub-object in a complex object in each coordinate axis direction, wherein the scale mode comprises:
• proportional stretching, non-stretching, and unit repetition;
• a scale ratio limit determining unit, configured to:
• for each of coordinate axis directions of the complex object, calculate a scale ratio limit of each cross section of the complex object perpendicular to the direction, wherein the scale ratio limit determining unit is further configured to:
• for each of coordinate axis directions of the complex object:
• determine whether each cross section perpendicular to the direction intersects one or more sub-objects;
• and
• if no, set no limit on the scale ratio;
• or if yes, limit the scale ratio of the cross section to not exceed a scale limit value of the sub-object that intersects the cross section in the direction;
• a segmented scale ratio range determining unit, configured to combine adjacent cross sections with the same scale ratio to obtain a segmented scale ratio range of the complex object in each direction;
• a segmented scale ratio determining unit, configured to:
• according to an adjustment target value of the complex object in each direction, calculate a segmented scale ratio of the complex object in each direction;
• and
• an adjustment unit, configured to:
• according to a scale ratio of each sub-object in each direction, calculate a new position range of each sub-object, and adjust a size of the complex object.

A device, comprising:

• a processor and a memory, wherein the processor establishes a communication connection to the memory;
• and
• the processor is configured to read a program in the memory to perform a method comprising, for each of coordinate axis directions of a complex object:
• assigning a scale mode to each sub-object in the complex object in the direction, wherein the scale mode comprises:
• proportional stretching, non-stretching and unit repetition;
• for each cross section of the complex object perpendicular to the direction, calculating a scale ratio limit of the cross section, wherein the calculating a scale ratio limit of the cross section comprises:
• determining whether the cross section intersects one or more sub-objects;
• and if no, setting no limit on the scale ratio;
• or if yes, limiting the scale ratio of the cross section to not exceed a scale limit value of the sub-object that intersects the cross section in the direction;
• combining adjacent cross sections with the same scale ratio to obtain a segmented scale ratio range of the complex object in the direction;
• according to an adjustment target value of the complex object in the direction, calculating a segmented scale ratio of the complex object in the direction;
• and
• according to a scale ratio of each sub-object in each direction, calculating a new position range of each sub-object and adjusting a size of the complex object.

A non-transitory storage medium, wherein a program is stored in the non-transitory storage medium, and when the program is run by a computing device, the computing device performs a method comprising,

• for each of coordinate axis directions of a complex object:
• assigning a scale mode to each sub-object in the complex object in the direction, wherein the scale mode comprises:
• proportional stretching, non-stretching and unit repetition;
• for each cross section of the complex object perpendicular to the direction, calculating a scale ratio limit of the cross section, wherein the calculating a scale ratio limit of the cross section comprises:
• determining whether the cross section intersects one or more sub-objects;
• and if no, setting no limit on the scale ratio;
• or if yes, limiting the scale ratio of the cross section to not exceed a scale limit value of the sub-object that intersects the cross section in the direction;
• combining adjacent cross sections with the same scale ratio to obtain a segmented scale ratio range of the complex object in the direction;
• according to an adjustment target value of the complex object in the direction, calculating a segmented scale ratio of the complex object in the direction;
• and
• according to a scale ratio of each sub-object in each direction, calculating a new position range of each sub-object and adjusting a size of the complex object.