void DrawDecoration(GraphData data, Vector2 workingDimensions, Vector2 origin) //TODO refactor this
{
decorationMaterial.SetPass(0);
//Cache some repeating calculations
float relOriginX = origin.x / graphSize.x;
float relOriginY = origin.y / graphSize.y;
float relThicknessHalfX = axesLineThickness / (graphSize.x * 2.0f);
float relThicknessHalfY = axesLineThickness / (graphSize.y * 2.0f);
//Draw Axes
GL.Begin(GL.QUADS);
//Y axis always begins at left edge
GL.Vertex3(relOriginX + relThicknessHalfX, relOriginY, 0.0f);
GL.Vertex3(relOriginX - relThicknessHalfX, relOriginY, 0.0f);
GL.Vertex3(relOriginX - relThicknessHalfX, (origin.y + workingDimensions.y) / graphSize.y, 0.0f);
GL.Vertex3(relOriginX + relThicknessHalfX, (origin.y + workingDimensions.y) / graphSize.y, 0.0f);
//The X axis is clamped to the zero value (if the values oscilate between positive and negative), or is the min (for all positive) or max (for all negative) value.
float yCoord;
if (data.isOscillatingAroundYAxis) //compute the position of y=zero.
{
yCoord = (origin.y + workingDimensions.y * (0.0f - data.minY) / data.rangeY) / graphSize.y;
}
else //compute position depending on whether all positive or negative
{
yCoord = (origin.y + Mathf.Min((Mathf.Sign(data.Value(0))) * workingDimensions.y, 0.0f)) / graphSize.y;
}
GL.Vertex3(relOriginX, yCoord - relThicknessHalfY, 0.0f);
GL.Vertex3(relOriginX, yCoord + relThicknessHalfY, 0.0f);
GL.Vertex3(relOriginX + workingDimensions.x / graphSize.x, yCoord + relThicknessHalfY, 0.0f);
GL.Vertex3(relOriginX + workingDimensions.x / graphSize.x, yCoord - relThicknessHalfY, 0.0f);
//Draw Grid
//modify cached reThicknessHalfX and Y to use gridLineThickness
relThicknessHalfX = gridLineThickness / (graphSize.x * 2.0f);
relThicknessHalfY = gridLineThickness / (graphSize.y * 2.0f);
int xGridCount = Mathf.Min(data.Length(), maxGridCountX);
//The code bellow allows for dynamic fitting of the grid, the end segment will be varrying in size, but the preceding ones will be fixed.
int daysPerGridSpacing = Mathf.CeilToInt(data.Length() / (float)xGridCount);
float xDistPerDay = (workingDimensions.x / (float)data.Length()) / graphSize.x;
for (int i = daysPerGridSpacing; i < data.Length(); i += daysPerGridSpacing)
{
GL.Vertex3(relOriginX + (i * xDistPerDay) + relThicknessHalfX, relOriginY, 0.0f);
GL.Vertex3(relOriginX + (i * xDistPerDay) - relThicknessHalfX, relOriginY, 0.0f);
GL.Vertex3(relOriginX + (i * xDistPerDay) - relThicknessHalfX, (origin.y + workingDimensions.y) / graphSize.y, 0.0f);
GL.Vertex3(relOriginX + (i * xDistPerDay) + relThicknessHalfX, (origin.y + workingDimensions.y) / graphSize.y, 0.0f);
}
float yGridSpacing = workingDimensions.y / (float)maxGridCountY / graphSize.y;
for (int i = 0; i <= maxGridCountY; i++)
{
GL.Vertex3(relOriginX, relOriginY + (i * yGridSpacing) - relThicknessHalfY, 0.0f);
GL.Vertex3(relOriginX, relOriginY + (i * yGridSpacing) + relThicknessHalfY, 0.0f);
GL.Vertex3((origin.x + workingDimensions.x) / graphSize.x, relOriginY + (i * yGridSpacing) + relThicknessHalfY, 0.0f);
GL.Vertex3((origin.x + workingDimensions.x) / graphSize.x, relOriginY + (i * yGridSpacing) - relThicknessHalfY, 0.0f);
}
GL.End();
//Spawn labels as Gameobjects with Text components (make them children of this transform)
for (int i = 0; i < xGridCount; i++)
{
//Set visibility on
labelsX[i].SetActive(true);
//Position at grid line
labelsX[i].GetComponent <RectTransform>().anchoredPosition = this.gameObject.GetComponent <RectTransform>().anchoredPosition - workingDimensions / 2.0f
+ new Vector2(i * daysPerGridSpacing * workingDimensions.x / data.Length(), -1.0f * padding.y);
//Set text value/date
labelsX[i].GetComponent <Text>().text = UIManager.DateToString(activeGraphData.DateByOffset(i * daysPerGridSpacing), true);
}
for (int i = 0; i <= maxGridCountY; i++)
{
//set visibility on
labelsY[i].SetActive(true);
//position at grid line
labelsY[i].GetComponent <RectTransform>().anchoredPosition = this.gameObject.GetComponent <RectTransform>().anchoredPosition - workingDimensions / 2.0f
+ new Vector2(-1.0f * padding.x, i * workingDimensions.y / (float)maxGridCountY + 10.0f);
//set text vale/date
labelsY[i].GetComponent <Text>().text = (i * activeGraphData.rangeY / (maxGridCountY) + activeGraphData.minY).ToString();
}
//disable unused labels
for (int i = xGridCount; i < labelsX.Count; i++)
{
labelsX[i].SetActive(false);
}
}