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-# Tutorial
-
-#### The main goal of this tutorial is to show all capabilities of ... (this part will be supplemented)
-
-The simple visualization can be made with function `main`. (this part will be supplemented as well)
-```kotlin
-import kotlinx.html.div
-import space.kscience.dataforge.context.Context
-import space.kscience.visionforge.html.ResourceLocation
-import space.kscience.visionforge.solid.*
-import java.nio.file.Paths
-
-fun main(){
-    val context = Context{
-        plugin(Solids)
-    }
-
-    context.makeVisionFile (
-        Paths.get("customFile.html"),
-        resourceLocation = ResourceLocation.EMBED
-    ){
-        div {
-            vision {
-                solid {
-                }
-            }
-        }
-    }
-}
-```
-## Solids properties
-**We will analyze which basic properties solids have using `box` solid.**
-
-*Basic properties:*
-1. `opacity` - It is set in `float`. It takes on values from 0 to 1, which represent percents of solid opacity. It's initial value is 1.
-2. `color` - It can be specified as `Int`, `String`, or as three `Ubytes`, which represent color in `rgb`. Elementally, the solid will have `green` color.
-3. `rotation` - it's the point, around which the solid will be rotated. Initially, the value is `Point3D(0, 0, 0)`. Changing `x` coordinate of the point, you make pivot around `x axis`. The same for other coordinates: changing `y` - pivot around `y axis`, changing `z` - pivot around `z axis`.
-4. position, which is given by values `x`, `y`, `z`. Initial values are `x = 0`, `y = 0`, `z = 0`. The coordinate system is Cartesian. It's elemental position is this - vertical `y` axis and horizontal `Oxz` plane.
-
-Let's see how properties are set in solids.
-The `small box` will have elemental values of properties. If you will not set properties, it will have the same `position`, `color`, `rotation`, and `opacity` values.
-
-***You can see that `box` take four values. Later, we will discuss what they do in more detail. Now, it does not really matter.***
-```kotlin
-box(10, 10, 10, name = "small box"){
-   x = 0
-   y = 0
-   z = 0
-   opacity = 1 //100% opacity
-   color("red") //as string
-   rotation = Point3D(0, 0, 0)
-}
-```
-![](../docs/images/small-box.png)
-
-The `big box` will have properties with custom values. 
-```kotlin
-box(40, 40, 40, name = "big box"){
-   x = 20
-   y = 10
-   z = 60
-   opacity = 0.5 //50% opacity
-   color(0u, 179u, 179u) //color in rgb
-   rotation = Point3D(60, 80, 0)
-}
-```
-![](../docs/images/big-rotated-box.png)
-If we compare these boxes, we will see all differences. 
-
-Here is the function `main` with both boxes.
-```kotlin
-fun main(){
-    val context = Context{
-        plugin(Solids)
-    }
-
-    context.makeVisionFile (
-        Paths.get("customFile.html"),
-        resourceLocation = ResourceLocation.EMBED
-    ){
-        div {
-            vision {
-                solid {
-                   box(10, 10, 10, name = "small box"){
-                      x = 0
-                      y = 0
-                      z = 0
-                      opacity = 1 //100% opacity
-                      color("red") //as string
-                      rotation = Point3D(0, 0, 0)
-                   }
-                   box(40, 40, 40, name = "big box"){
-                      x = 20
-                      y = 10
-                      z = 60
-                      opacity = 0.5 //50% opacity
-                      color(0u, 179u, 179u) //rgb
-                      rotation = Point3D(60, 80, 0)
-                   }
-                }
-            }
-        }
-    }
-}
-```
-![](../docs/images/two-boxes-1.png)
-![](../docs/images/two-boxes-2.png)
-
-***There is plenty of other properties, especially of those, which you can create by yourself. Here we mention just small part.***
-
-## Basic Solids
-Now, let's see which solids can be visualized:
-### 1) PolyLine
-### 2) Box
-
-First thing which has to be mentioned is that `box` takes four values: `box(x, y, z, name)`
-* `x` - x-axis length of the `box`
-* `y` - y-axis length of the `box`
-* `z` - z-axis length of the `box`
-
-These values have `Float` type. *`x`, `y`, and `z` are necessary values, which cannot be ignored. You have to set them.*
-
-* `name` - `box`'es identifier with `String` type. *It's an optional value, but without it you won't be able to control solid.*
-
-Let's create just usual `box` with equal ribs.
-
-```kotlin
-   box(50, 50, 50, name = "box") {
-        color("pink")
-   }
-```
-   ![](../docs/images/box.png)
-
-Now, let's make `box` with bigger `y` value.
-   ```kotlin
-   box(10, 25, 10, name = "high box") {
-        color("black")
-   }
-   ```
-As you can see, only rib of `y-axis` differs from other ribs.
-
-   ![](../docs/images/high-box.png)
-
-For final trial, let's create `box` with bigger `x` value.
-   
-   ```kotlin
-   box(65, 40, 40, name = "wide box") {
-        x = 0
-        y = 0
-        z = 0
-        color("black")
-   }
-   ```
-Predictably, only `x-axis` rib bigger than other ribs. 
-
-   ![](../docs/images/wide-box.png)
-   
-### 3) Sphere
-
-It takes in two values: `radius`, and `name`. 
-Actually, `name` is general value for all solids, so do not wonder, since all solids need their own identifier.
-
-As for `radius`, it has `Float` type, and, as you can guess, it sets radius of the sphere, which will be created.
-   ```kotlin
-   sphere(50, name = "sphere") {
-        x = 0
-        y = 0
-        z = 0
-        opacity = 0.9
-        color("blue")
-   }
-   ```
-   ![](../docs/images/sphere.png)
-
-### 4) Hexagon
-
-It is solid which has six edges. It is set by eight values: `node1`,..., `node8`. They all have `Point3D` type, so they are just points, vertices.
-
-*Six edges are these:* 
-1) Edge with vertices `node1`, `node4`, `node3`, `node2`
-2) Edge with vertices `node1`, `node2`, `node6`, `node5`
-3) Edge with vertices `node2`, `node3`, `node7`, `node6`
-4) Edge with vertices `node4`, `node8`, `node7`, `node3`
-5) Edge with vertices `node1`, `node5`, `node8`, `node4`
-6) Edge with vertices `node8`, `node5`, `node6`, `node7`
-
-![](../docs/images/scheme.png)
-
-As hexagon takes in specific points, we understand that this solid cannot be moved, it fixed in space, and it can't make pivots.
-
-Let's make classic parallelepiped.
-```kotlin
-   hexagon(
-        Point3D(25, 30, 25),
-        Point3D(35, 30, 25),
-        Point3D(35, 30, 15),
-        Point3D(25, 30, 15),
-        Point3D(30, 18, 20),
-        Point3D(40, 18, 20),
-        Point3D(40, 18, 10),
-        Point3D(30, 18, 10),
-        name = "classic hexagon"){
-        color("green")
-   }
-```
-   ![](../docs/images/classic-hexagon.png)
-
-Now, let's make a custom hexagon.
-
-   ```kotlin
-   hexagon(
-        Point3D(5, 30, 5),
-        Point3D(24, 30, 8),
-        Point3D(20, 30, -10),
-        Point3D(5, 30, -7),
-        Point3D(8, 16, 0),
-        Point3D(12, 16, 0),
-        Point3D(10, 16, -5),
-        Point3D(6.5, 12, -3),
-        name = "custom_hexagon"){
-        color("brown")
-   }
-   ```
-   ![](../docs/images/custom-hexagon.png)
-### 3) Cone
-It takes in six values: `bottomRadius`, `height`, `upperRadius`, `startAngle`, `angle`, and `name`. 
-
-Obviously, `bottomRadius` is responsible for radius of a bottom base, and `height` sets height of a cone along the `z-axis`.
-
-As it takes such values as `upperRadius`, `startAngle`, `angle`, `cone` can build not only usual cones, but also cone segments. Initially, `upperRadius` will have `0.0` value, `startAngle` - `0f`, `angle` - `PI2`, so if you don't set them, you'll get just a simple cone. 
-
-Setting `upperRadius`, you make a frustum cone, since it sets a radius of the upper base of a cone. Set `startAngle`, and `angle` let to cut off segments by planes perpendicular to the base. `startAngle` - an angle, starting with which segment will be left, `angle` - an angle of cone, which will be set from `startAngle`. 
-
-Let's build a classic cone:
-```kotlin
-   cone(60, 80, name = "cone") {
-         color("beige")
-   }
-   ```
-   ![](../docs/images/cone-1.png)
-   ![](../docs/images/cone-2.png)
-
-First of all, we have to try to build a frustum cone:
-```kotlin
-cone(60, 80, name = "cone") {
-   color(0u, 40u, 0u)
-}
-```
-![](../docs/images/frustum-cone.png)
-
-Now, we need to make a try to build a cone segment:
-
-```kotlin
-cone(60, 80, angle = PI, name = "cone") {
-   color(0u, 0u, 200u)
-}
-```
-![](../docs/images/cone-segment-1.png)
-![](../docs/images/cone-segment-2.png)
-
-Finally, the segment of frustum cone is left for a try:
-```kotlin
-cone(60, 100, 20, PI*3/4, angle = PI/3, name = "cone") {
-   color(190u, 0u, 0u)
-}
-```
-![](../docs/images/frustum-cone-segment.png)
-
-### 4) Cone Surface
-This solid is set by seven values:`bottomOuterRadius`, `bottomInnerRadius`, `height`, `topOuterRadius`, `topInnerRadius`, `startAngle`, and `angle`.
-
-In addition to `height`, `startAngle`, and `angle`, which work as they work in `cone`, there are some new values.
-`bottomOuterRadius`, and `bottomInnerRadius` set properties of the bottom circle, `topOuterRadius`, `topInnerRadius` - of the upper circle. They have no initial value, so that means they have to be set.
-
-Generally, `cone`, and `coneSurface` buildings work in the same way, it's possible to make `coneSurface`'s fragments as in `cone`
-
-Let's build usual cone surface with almost all properties set:
-```kotlin
-   coneSurface(60, 50, 30, 10, 100, name = "cone surface") {
-        color("red")
-        rotation = Point3D(2, 50, -9)
-   }
-   ```
-![](../docs/images/cone-surface-1.png)
-![](../docs/images/cone-surface-2.png)
-
-Now, let's create a cone surface and set all it's properties:
-
-```kotlin
-coneSurface(30, 25, 10, 10, 8,0f, pi*3/4, name = "cone surface") {
-   color("fuchsia")
-   rotation = Point3D(2, 50, -9)
-}
-```
-![](../docs/images/cone-surface-fragment.png)
-![](../docs/images/cone-surface-fragment-2.png)
-
-### 5) Cylinder
-
-This solid is set by `radius`, and `height`. As you can see by accepting values, there's no option of building fragments of cylinders.
-
-Here's a demonstration of a cylinder:
-
-```kotlin
-cylinder(40, 100, "cylinder"){
-   rotation = Point3D(40, 0, 0)
-   color("indigo")
-}
-```
-![](../docs/images/cylinder-1.png)
-![](../docs/images/cylinder-2.png)
-### 6) Tube
-
-`tube` takes in `radius`, `height`, `innerRadius`, `startAngle`, `angle`, and `name`. *All values are familiar from `cone`, and `coneSurface` solids.*
-
-Here is an example of classic tube:
-```kotlin
-tube(50, 40, 20, name = "usual tube"){
-   opacity = 0.4
-}                    
-```
-![](../docs/images/tube.png)
-
-This is an example of tube fragment:
-
-```kotlin
-tube(50, 40, 20, 0f, PI, name = "fragmented tube"){    
-   color("white")
-}
-```
-![](../docs/images/tube-fragment.png)
-### 7) Extruded
-