Patent ID: 8345048
Filing Date: 2013-01-01
Classification: G06T

Abstract:
1. A chart rendering apparatus comprising: a chart image generating portion for generating a chart expressing a plurality of line drawings in a color difference as an image in a bitmap format from a plurality of numeric data; an identifying information generating portion for generating identifying information capable of identifying the line drawings on the chart image generated by the chart image generating portion based on the chart image and generating identifying layout information obtained by giving the identifying information to dots corresponding to the line drawings over the same two-dimensional layout as the chart image respectively; a displaying chart image generating portion for generating a displaying chart image based on the chart image generated by the chart image generating portion; a display controlling portion for causing a display device to display the displaying chart image generated by the displaying chart image generating portion; an identifying information acquiring portion for acquiring identifying information corresponding to any of the dots designated over the displaying chart image displayed by the display controlling portion from the identifying layout information; and a line drawing specifying portion for specifying, as the line drawing, a dot string indicated by the identifying information acquired through the identifying information acquiring portion; wherein the identifying information generating portion gives each of the identifying information corresponding to the respective line drawings to any of the dots which has the line drawings overlapping with each other over the chart image, thereby generating the identifying layout information, and wherein the identifying information acquiring portion acquires one of the identifying information given to the designated dot if the dot has the line drawings overlapping with each other over the chart image.