var scale = new GC.Spread.Sheets.ConditionalFormatting.ScaleRule();
scale.ruleType(GC.Spread.Sheets.ConditionalFormatting.RuleType.threeScaleRule);
scale.midColor("red");
scale.midType(GC.Spread.Sheets.ConditionalFormatting.ScaleValueType.number);
scale.midValue(50);
scale.maxColor("blue");
scale.maxType(GC.Spread.Sheets.ConditionalFormatting.ScaleValueType.number);
scale.maxValue(100);
scale.minColor("yellow");
scale.minType(GC.Spread.Sheets.ConditionalFormatting.ScaleValueType.number);
scale.minValue(10);
scale.ranges([new GC.Spread.Sheets.Range(0, 0, 10, 3)]);
activeSheet.conditionalFormats.addRule(scale);
activeSheet.setValue(0,0, 1,3);
activeSheet.setValue(1,0, 50,3);
activeSheet.setValue(2,0, 100,3);

activeSheet.conditionalFormats.add2ScaleRule(GC.Spread.Sheets.ConditionalFormatting.ScaleValueType.number,1,"Yellow",GC.Spread.Sheets.ConditionalFormatting.ScaleValueType.number,50,"Blue", [new GC.Spread.Sheets.Range(0,0,20,1)]);
activeSheet.setValue(0,0,1,3);
activeSheet.setValue(1,0,45,3);
activeSheet.setValue(2,0,75,3);