Question – HELP DISPLAYING SONAR DATA ONTO A 2D MESH

Void UpdateSonarDisplay()

{

//180 Scan

//Arc: 3.14159265358979

//range: 0.374736

//m_RangeCells: 633 //amount qauds to draw based on the samples

//Centrle Angle centre180Degree

//Sectors: 200

//Arc Radians: 3.14159265358979

//Centre Angle Radians: 3.14159265358979 //centre at 180

//Start Angle: 1.5707963267949

//360 Scan

//Arc: 6.28318530717959

//range: 0.3744

//m_RangeCells: 624 //amount qauds to draw based on the samples

//Centrle Angle centre180Degree

//Sectors: 400// spokes in a wheel

//Arc Radians: 6.28318530717959

//Centre Angle Radians: 3.14159265358979// centre at 180

//Start Angle: 0

//This is based on the 180

double m_StartRange = 0.00;

m_Arc = 3.14159265358979

m_Range = 0.374736

//m_Sectors = datafile.Swath.Sectors;

m_RangeCells = 633

m_CenterAngle = centre180Degree//enum

m_Sectors = 200

double arcRadians = 3.14159265358979

double centreAngleRadians = 3.14159265358979

double m_StartAngle = 1.5707963267949

double anglePerSector = m_Arc / m_Sectors;

double rangePerCell = (m_Range – m_StartRange) / (double)m_RangeCells;

vertices = new Vector3[m_Sectors * m_RangeCells * 4];

colors = new Color[m_Sectors * m_RangeCells * 4];

indices1 = new int[m_Sectors * m_RangeCells * 6];

int vertexIndex = 0;

int colorIndex = 0;

int indexIndex = 0;

//This genrates all the positions needed and seems accurate

for (int sector = 0; sector < m_Sectors; sector++)

{

int rangeCell = 0;

float sectorStartAngle = (float)m_StartAngle + (float)anglePerSector * (float)sector;

float sectorEndAngle = (float)sectorStartAngle + (float)anglePerSector;

float sinStartAngle = Mathf.Sin(sectorStartAngle);

float cosStartAngle = Mathf.Cos(sectorStartAngle);

float sinEndAngle = Mathf.Sin(sectorEndAngle);

float cosEndAngle = Mathf.Cos(sectorEndAngle);

if (m_StartRange == 0.0f)

{

vertices[vertexIndex++] = new Vector3(0, 0, 0);

vertices[vertexIndex++] = new Vector3((float)rangePerCell * sinStartAngle, (float)rangePerCell * cosStartAngle, 0.0f);

vertices[vertexIndex++] = new Vector3((float)rangePerCell * sinEndAngle, (float)rangePerCell * cosEndAngle, 0.0f);

//This supposedly outlines the visual data based on the start range

colors[colorIndex++] = Color.blue;

colors[colorIndex++] = Color.red;

colors[colorIndex++] = Color.yellow;

rangeCell++;

}

for (; rangeCell < m_RangeCells; rangeCell++)

{

float cellStartRange = (float)m_StartRange + (float)rangeCell * (float)rangePerCell;

float cellEndRange = (float)cellStartRange + (float)rangePerCell;

vertices[vertexIndex++] = new Vector3(cellStartRange * sinStartAngle, cellStartRange * cosStartAngle, 0.0f);

vertices[vertexIndex++] = new Vector3(cellEndRange * sinStartAngle, cellEndRange * cosStartAngle, 0.0f);

vertices[vertexIndex++] = new Vector3(cellEndRange * sinEndAngle, cellEndRange * cosEndAngle, 0.0f);

vertices[vertexIndex++] = new Vector3(cellStartRange * sinEndAngle, cellStartRange * cosEndAngle, 0.0f);

//This just covers the rest in black

colors[colorIndex++] = Color.black;

}

//This is where the problem occurs. The mesh does not complete the full 180 or 360 depending on the //settings arc. it’s stops at 15 Degrees and draws over and over

// Generate triangles

for (int sector = 0; sector < m_Sectors; sector++)

{

int rangeCell = 0;

int offset = (m_RangeCells * 4 – 1) * sector;

if (m_StartRange > 0.0f)

offset = (m_RangeCells * 4) * sector;

if (m_StartRange == 0.0f)

{

indices1[indexIndex++] = offset++;

rangeCell++;

}

for (; rangeCell < m_RangeCells; rangeCell++)

{

indices1[indexIndex++] = offset;

indices1[indexIndex++] = offset + 1;

indices1[indexIndex++] = offset + 2;

indices1[indexIndex++] = offset;

indices1[indexIndex++] = offset + 2;

indices1[indexIndex++] = offset + 3;

offset += 4;

}

yield return new WaitForSeconds(0.01f);

}