Three-dimensional object modeling device, method of molding three-dimensional object, and control program for three-dimensional object modeling device

A method of modeling a three-dimensional object, the method comprising:

• generating modeling data for the three-dimensional object;
• determining a region to be modeled by layering a dot using a modeling ink based on the modeling data;
• determining a color region to be colored by discharge of a coloring ink on a surface of a set of the layered dot with the modeling ink, based on the modeling data to reduce a difference in depth in a normal direction of a surface of the three-dimensional object;
• generating modeling ink discharge data for discharging the modeling ink, and coloring ink discharge data for discharging the coloring ink;
• and
• causing the modeling ink and the coloring ink to be discharged in accordance the discharge data of the modeling ink and the coloring ink, and performing modeling and coloring of the three-dimensional object,
• wherein the depth from the surface of the color region is determined as a number of dots which is inversely proportional to a magnitude of each term in an integer ratio by which a length, a width, and a height as a dot size of the dot formed by using the coloring ink are approximated.

A non-transitory computer-readable medium including a control program for a three-dimensional object modeling device, the control program causing a computer to execute a process by a processor so as to perform the steps of:

• generating modeling data for the three-dimensional object;
• determining a region to be modeled by layering a dot using a modeling ink based on the modeling data;
• determining a color region to be colored by discharge of a coloring ink on a surface of a set of the layered dot with the modeling ink, based on the modeling data to reduce a difference in depth in a normal direction of a surface of the three-dimensional object;
• generating modeling ink discharge data for discharging the modeling ink, and coloring ink discharge data for discharging the coloring ink;
• and
• causing the modeling ink and the coloring ink to be discharged in accordance the discharge data of the modeling ink and the coloring ink, and performing modeling and coloring of the three-dimensional object,
• wherein the depth from the surface of the color region is determined as a number of dots which is inversely proportional to a magnitude of each term in an integer ratio by which a length, a width, and a height as a dot size of the dot formed by using the coloring ink are approximated.