hmeyer
can't get minimal exemple to work
I’m interested in ploting 3D implicite functions, i was trying to compile the sphere exemple, unfortunatly i didn't success to compile it even i'm using a minimal code:
extern crate nalgebra;
extern crate tessellation;
use nalgebra as na;
/*//!*/
struct UnitSphere {
bbox : tessellation::BoundingBox<f64>
}
/*//!*/
impl UnitSphere {
fn new() -> UnitSphere {
UnitSphere {
bbox: tessellation::BoundingBox::new(&na::Point3::new(-1., -1., -1.),
&na::Point3::new( 1., 1., 1.)) }
}
}
impl tessellation::ImplicitFunction<f64> for UnitSphere {
fn bbox(&self) -> &tessellation::BoundingBox<f64> {
&self.bbox
}
fn value(&self, p: &na::Point3<f64>) -> f64 {
na::Vector3::new(p.x, p.y, p.z).norm() - 1.0
}
fn normal(&self, p: &na::Point3<f64>) -> na::Vector3<f64> {
na::Vector3::new(p.x, p.y, p.z).normalize()
}
}
fn main() {
let sphere = UnitSphere::new();
let mut mdc = tessellation::ManifoldDualContouring::new(&sphere, 0.2, 0.1);
let triangles = mdc.tessellate().unwrap();
println!("Hello, world!");
}
Can you help me solve this error please?
Can you also post your error message, please?
bekraoui @.***> schrieb am Mi., 15. Sept. 2021, 00:04:
I’m interested in ploting 3D implicite functions, i was trying to compile the sphere exemple, unfortunatly i didn't success to compile it even i'm using a minimal code:
extern crate nalgebra;
extern crate tessellation;
use nalgebra as na;
///!/
struct UnitSphere {
bbox : tessellation::BoundingBox
}
///!/
impl UnitSphere {
fn new() -> UnitSphere {
UnitSphere { bbox: tessellation::BoundingBox::new(&na::Point3::new(-1., -1., -1.), &na::Point3::new( 1., 1., 1.)) }}
}
impl tessellation::ImplicitFunction
for UnitSphere { fn bbox(&self) -> &tessellation::BoundingBox
{ &self.bbox}
fn value(&self, p: &na::Point3
) -> f64 { na::Vector3::new(p.x, p.y, p.z).norm() - 1.0}
fn normal(&self, p: &na::Point3
) -> na::Vector3 { na::Vector3::new(p.x, p.y, p.z).normalize()}
}
fn main() {
let sphere = UnitSphere::new(); let mut mdc = tessellation::ManifoldDualContouring::new(&sphere, 0.2, 0.1); let triangles = mdc.tessellate().unwrap(); println!("Hello, world!");}
Can you help me solve this error please?
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This is the full error messages it seems that is uses some Opoint object instead of point :
Compiling testiso v0.1.0 (/run/media/photon/2ad43a53-2f50-4f3d-801b-2a6938cc4a18/Projects/PixelCAE/testiso)
error[E0053]: method `value` has an incompatible type for trait
--> src/main.rs:22:22
|
22 | fn value(&self, p: &na::Point3<f64>) -> f64 {
| ^^^^^^^^^^^^^^^^
| |
| expected struct `nalgebra::geometry::point::Point`, found struct `OPoint`
| help: change the parameter type to match the trait: `&nalgebra::geometry::point::Point<f64, nalgebra::base::dimension::U3>`
|
= note: expected fn pointer `fn(&UnitSphere, &nalgebra::geometry::point::Point<f64, nalgebra::base::dimension::U3>) -> _`
found fn pointer `fn(&UnitSphere, &OPoint<f64, Const<3_usize>>) -> _`
error[E0053]: method `normal` has an incompatible type for trait
--> src/main.rs:25:23
|
25 | fn normal(&self, p: &na::Point3<f64>) -> na::Vector3<f64> {
| ^^^^^^^^^^^^^^^^
| |
| expected struct `nalgebra::geometry::point::Point`, found struct `OPoint`
| help: change the parameter type to match the trait: `&nalgebra::geometry::point::Point<f64, nalgebra::base::dimension::U3>`
|
= note: expected fn pointer `fn(&UnitSphere, &nalgebra::geometry::point::Point<f64, nalgebra::base::dimension::U3>) -> nalgebra::base::matrix::Matrix<f64, nalgebra::base::dimension::U3, nalgebra::base::dimension::U1, nalgebra::base::array_storage::ArrayStorage<f64, nalgebra::base::dimension::U3, nalgebra::base::dimension::U1>>`
found fn pointer `fn(&UnitSphere, &OPoint<f64, Const<3_usize>>) -> Matrix<f64, Const<3_usize>, Const<1_usize>, ArrayStorage<f64, 3_usize, 1_usize>>`
error[E0308]: mismatched types
--> src/main.rs:13:44
|
13 | bbox: tessellation::BoundingBox::new(&na::Point3::new(-1., -1., -1.),
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nalgebra::geometry::point::Point`, found struct `OPoint`
|
= note: expected reference `&nalgebra::geometry::point::Point<f64, nalgebra::base::dimension::U3>`
found reference `&OPoint<{float}, Const<3_usize>>`
error[E0308]: mismatched types
--> src/main.rs:14:44
|
14 | ... &na::Point3::new( 1., 1., 1.)) }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `nalgebra::geometry::point::Point`, found struct `OPoint`
|
= note: expected reference `&nalgebra::geometry::point::Point<f64, nalgebra::base::dimension::U3>`
found reference `&OPoint<{float}, Const<3_usize>>`
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0053, E0308.
For more information about an error, try `rustc --explain E0053`.
error: could not compile `testiso`
my cargo.toml:
[package]
name = "testiso"
version = "0.1.0"
edition = "2018"
[dependencies]
nalgebra = "0.29.0"
tessellation = "0.8.2"
As you can see in this minimal example i'm not using any library than "nalgebra" and "tesselation". And i didn't define any opoint object.