How to account for spacing between tiles in a tile sheet - c++

Question

My tile-sheet has tiles that are 64x64, however between each tile there is a 10px gap and i need to account for that gap when setting the texture rectangle in the image in order to draw that tile
I tried simply adding the space upon setting the texture rectangle but the image still looks distorted
for (auto y = 0u; y < map.getTileCount().y; ++y)
{
for (auto x = 0u; x < map.getTileCount().x; ++x)
{
auto posX = static_cast<float>(x * map.getTileSize().x);
auto posY = static_cast<float>(y * map.getTileSize().y);
sf::Vector2f position(posX, posY);
tileSprite.setPosition(position);
auto tileID = tiles[y * map.getTileCount().x + x].ID; //the id of the current tile
if (tileID == 0)
{
continue; //empty tile
}
auto i = 0;
while (tileID < tileSets[i].getFirstGID())
{
++i;
}
auto relativeID = tileID - tileSets[i].getFirstGID();
auto tileX = relativeID % tileSets[i].getColumnCount();
auto tileY = relativeID / tileSets[i].getColumnCount();
textureRect.left = tileX * tileSets[i].getTileSize().x; //i am guessing this is where
// i should account for the spacing
textureRect.top = tileY * tileSets[i].getTileSize().y;
tileSprite.setTexture(mTextureHolder.get(Textures::SpriteSheet));
tileSprite.setTextureRect(textureRect);
mMapTexture.draw(tileSprite);
}
}
The code itself is working and its drawing the tiles in the correct sizes, if i use a normal 64x64 tileset without any spacing the final image looks right however with spacing included the tiles are cut out.
How do i add the gap between the tiles when setting the texture rectangle?
this is how it looks:
this is how it should look:
(NOTE: The "how it should look" image is from the Tiled editor )

Answer 1

Removing the spaces with a python script i found and gimp fixed the problem, however if anyone knows how to account for the spacing feel free to answer as i might need it someday