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Added more point attribute data. #21

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Added more point attribute data. #21

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83 changes: 81 additions & 2 deletions include/LasWriter.h
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Original file line number Diff line number Diff line change
Expand Up @@ -118,6 +118,85 @@ vector<function<void(int64_t)>> createAttributeHandlers(laszip_header* header, l
mapping["classification"] = handler;
}

{ // RETURN NUMBER
auto attribute = inputAttributes.get("return number");
auto source = points->attributeBuffersMap["return number"];
auto handler = [point, source, attribute](int64_t index) {
uint8_t returnNumber;
if (source != nullptr) {
memcpy(&returnNumber, source->data_u8 + index * attribute->size, 1);
}
else {
returnNumber = 0;
}
point->return_number = returnNumber;
};
mapping["return number"] = handler;
}

{ // NUMBER OF RETURNS
auto attribute = inputAttributes.get("number of returns");
auto source = points->attributeBuffersMap["number of returns"];
auto handler = [point, source, attribute](int64_t index) {
uint8_t numberofReturns;
if (source != nullptr) {
memcpy(&numberofReturns, source->data_u8 + index * attribute->size, 1);
}
else {
numberofReturns = 0;
}
point->number_of_returns = numberofReturns;
};
mapping["number of returns"] = handler;
}

{ // USER DATA
auto attribute = inputAttributes.get("user data");
auto source = points->attributeBuffersMap["user data"];
auto handler = [point, source, attribute](int64_t index) {
uint8_t userdata;
if (source != nullptr) {
memcpy(&userdata, source->data_u8 + index * attribute->size, 1);
}
else {
userdata = 0;
}
point->user_data = userdata;
};
mapping["user data"] = handler;
}

{ // POINT SOURCE ID
auto attribute = inputAttributes.get("point source id");
auto source = points->attributeBuffersMap["point source id"];
auto handler = [point, source, attribute](int64_t index) {
if (source != nullptr) {
memcpy(&point->point_source_ID, source->data_u8 + index * attribute->size, 2);
}
else {
memset(&point->point_source_ID, 0, sizeof(point->point_source_ID));
}
};
mapping["point source id"] = handler;
}

{ //GPS-TIME
auto attribute = inputAttributes.get("gps-time");
auto source = points->attributeBuffersMap["gps-time"];
auto handler = [point, source, attribute](int64_t index) {
double gpstime;
if (source != nullptr) {
memcpy(&gpstime, source->data_f64, 8);
}
else {
gpstime = 0.00000;
}
point->gps_time = gpstime;
};
mapping["gps-time"] = handler;
}


for (auto& attribute : outputAttributes.list) {

if (mapping.find(attribute.name) != mapping.end()) {
Expand Down Expand Up @@ -159,7 +238,7 @@ struct LasWriter : public Writer {
header.version_minor = 4;
header.header_size = 375;
header.offset_to_point_data = 375;
header.point_data_format = 2;
header.point_data_format = 3;

header.min_x = aabb.min.x;
header.min_y = aabb.min.y;
Expand All @@ -176,7 +255,7 @@ struct LasWriter : public Writer {
header.y_offset = offset.y;
header.z_offset = offset.z;

header.point_data_record_length = 26;
header.point_data_record_length = 34;
//header.number_of_point_records = 111; // must be updated at the end
header.extended_number_of_point_records = 0;

Expand Down